If you have made it this far in Pragmata, congratulations on reaching Sector 3. The Terra Dome is one of the longest and most rewarding sectors in the entire game, and it can easily take over an hour to clear on a first playthrough. This Pragmata Walkthrough for Sector 3 Terra Dome covers every block from the Terra Dome Entrance through the Garden Keeper boss fight, including all Safe Box locations, Gen Chips, Pure Lunum, and Read Earth Memory collectibles along the way.
I have run through Terra Dome multiple times to map out every collectible, test different weapon loadouts, and find the most reliable strategies for each enemy encounter. Whether you are going for a straight story run or aiming for 100% completion, this guide has you covered with step-by-step instructions for each area.
Before you start Sector 3, make sure you have completed Sectors 1 and 2. You should have the basic hacking ability unlocked along with Diana’s Scanner ability, which becomes absolutely essential in Terra Dome. The enemies here hit harder, and the environments are more complex, so having your weapons and firmware upgraded from previous sectors will make a noticeable difference.
One thing I want to flag right away: several players on the Pragmata subreddit have reported Safe Boxes occasionally not spawning properly. If you reach a location described in this guide and the Safe Box is not there, try reloading your last checkpoint. This is a known issue that the developers are aware of as of 2026. The community has confirmed that a checkpoint reload fixes the spawn in most cases.
Terra Dome is structured around five distinct blocks that you progress through in sequence. Each block has its own environmental theme, enemy types, and collectibles. The blocks are Terra Dome Entrance, Eco Modeling Lab, Center Hall, Soil Research, and the Terrarium. You will also visit the Plant Factory, which is part of the early Lim Regulator reboot sequence. Understanding this block structure helps with navigation, especially in the later areas where the pathing can get confusing.
The Terra Dome Entrance is your first taste of what makes Sector 3 different from the previous sectors. As you approach the massive dome structure, you will notice the Red Zone markers on your HUD. These areas deal continuous damage if you stay too long, so keep moving and plan your routes carefully. This section covers everything from your arrival at the dome exterior through the interior entrance chamber.
When you arrive at the Terra Dome exterior, head toward the main entrance on the north side of the structure. You will see a large sealed door with a hacking terminal beside it. Approach the terminal and use your hacking ability to initiate the door sequence. This triggers a brief cutscene where Diana comments on the vegetation growing inside the dome. The door opens slowly, revealing the overgrown corridor beyond.
Before entering, take a moment to check your loadout. I recommend bringing the Lancer and the Pulse Carbine for this sector. The Lancer handles close-range encounters with fast enemies like Crawlers, while the Pulse Carbine gives you solid mid-range damage against the heavier bots you will face. Sticky Bombs are also extremely useful here, especially for dealing with shielded enemies later in the sector. If you have been upgrading the Crusher from Sector 2, bring that along too since it excels against armored targets.
The exterior area before the entrance is safe from enemies, so this is a good place to sort your inventory and craft supplies at the Unit Printer nearby. Make sure you have at least five healing items and a full stock of Sticky Bombs before heading inside.
Once inside the entrance corridor, follow the path forward until you reach a fork. The corridor is narrow and lined with dormant plant growth on both sides. At the fork, you have two options. Take the left path first. This leads to a small side room with the first Safe Box of Sector 3 sitting on a shelf against the back wall. Open it to collect an Upgrade Component and a Firmware Updater. Both of these are useful right away since you will encounter tougher enemies shortly.
Head back to the fork and take the right path. You will encounter a group of three Crawlers and a single Sentry bot. Use the Lancer to take out the Crawlers quickly, then switch to the Pulse Carbine for the Sentry. The Sentry has a weak point on its back that deals double damage, so try to flank it if possible. The corridor opens up into a larger chamber with vegetation growing along the walls and ceiling.
This chamber introduces the Red Zone mechanic, which becomes a recurring hazard throughout Sector 3. You will see a red-tinted area ahead with warning indicators on your HUD. The key here is to move swiftly through the zone without stopping to fight unless absolutely necessary. Sprint forward, use your dodge to avoid enemy projectiles, and reach the far end where the zone ends at another sealed door.
If you do need to fight in a Red Zone, use cover liberally. Pop out, fire a few shots, and duck back behind obstacles. The continuous damage is manageable in short bursts, but extended exposure will drain your health fast. Keep some healing items ready just in case. I have found that the damage ticks about once every two seconds, so you have roughly 15 to 20 seconds before the damage becomes critical depending on your health pool.
The Red Zone in the entrance area is relatively short compared to the ones you will encounter later in the Plant Factory. Use this one to get comfortable with the mechanic. Practice sprinting through while dodging, because later Red Zones are longer and have more enemies blocking your path.
Before leaving the entrance area, look for a small alcove on the east side of the main chamber. There is a hidden passage here that you might miss if you are not using Diana’s Scanner. Activate the Scanner and it will highlight the passage with a blue outline. This leads to a room containing the Scanner upgrade for Diana.
This upgrade is one of the most important items in the entire sector, and many players on the Pragmata forums wish they had known about it sooner. The enhanced Scanner reveals hidden walls, holo-walls, and secret passages throughout Terra Dome. Several Safe Boxes and collectibles later in the sector are hidden behind these walls, so you will be glad you picked this up. Without it, you will walk right past hidden areas that look like normal walls.
The Scanner upgrade room also contains a REM (Read Earth Memory) on a small pedestal near the back. Pick it up while you are there. The REMs in Terra Dome contain lore entries about the Cradle space station and the dome’s original purpose as an ecological preservation system. They are worth reading for the story details alone.
After collecting the Scanner upgrade, continue through the main door to reach the Terra Dome interior. A short cutscene plays showing the massive artificial ecosystem inside. The dome stretches hundreds of meters above you, filled with synthetic trees, flowing water systems, and automated maintenance drones. Welcome to the Terra Dome proper.
The Plant Factory is the first major block inside the Terra Dome and your first objective is to reboot the Lim Regulators here. Lim Regulators are devices that control the environmental systems within the dome. Rebooting them restores functionality to different areas and opens new paths forward. You will need to reboot two Lim Regulators in the Plant Factory section.
Lim Regulators are cylindrical terminals scattered throughout Terra Dome. Each one requires a brief hacking sequence to reboot. When you reboot a Lim Regulator, it restores power and environmental controls to the surrounding area, which can clear obstacles, open doors, and disable hazards. You will need to reboot several of them across the Plant Factory and Eco Modeling Lab to progress through Sector 3.
The hacking sequence for Lim Regulators involves aligning three data nodes within a time limit. The nodes appear as small circles that you rotate to match a target pattern. The first node is stationary, the second moves slowly, and the third moves quickly with a shorter timer. This means the third node is usually the bottleneck, so practice the timing. If you fail, you can retry immediately without any penalty, so there is no downside to taking multiple attempts.
Later in the guide I cover the Hacking Mode chips that make these sequences easier. If you are struggling with the hacking, those chips are worth prioritizing as soon as you can access them in the Eco Modeling Lab.
Enter the Plant Factory from the main dome corridor. The interior is overgrown with synthetic vegetation, and visibility is limited in places. Large plant cultivation tanks line both sides of the entry corridor, with vines and leaves spilling over the edges. Move forward through the first corridor, which winds between the tanks. You will encounter your first Creeper bots here.
Creeper bots are a new enemy type introduced in Sector 3, and they are one of the most frustrating enemies in the game. They are partially invisible and only become fully visible when they attack or when you use Diana’s Scanner. The Scanner upgrade you picked up earlier is invaluable here. Activate it frequently to reveal Creepers before they can ambush you.
When fighting Creepers, I recommend using the Pulse Carbine. Its rapid fire rate lets you track the faint shimmer of a cloaked Creeper and deal damage even before it fully decloaks. Sticky Bombs also work well if you can predict where a Creeper is moving. Toss one in the general direction and detonate it when the Creeper passes through the blast radius. This tactic saves you from having to track the enemy visually.
Creeper bots deal significant melee damage when they decloak and strike. Their attack pattern is a two-hit combo followed by a brief recovery window. Dodge the first hit, block the second, then punish during the recovery. Once you learn the pattern, Creepers become much less threatening. The key is detecting them early so they cannot get the drop on you.
Follow the main path through the cultivation area until you reach a large circular room with a central platform. Clear out the enemies here, which include two Crawlers, a Creeper, and a Heavy Sentry. Once the room is secure, approach the Lim Regulator on the central platform and initiate the hack.
Take your time on the first two nodes and save your speed for the third one, which has a shorter timer. The room respawns enemies if you take too long on the hack, so efficiency matters here. If enemies start spawning while you are mid-hack, you can abort and clear them before trying again. It is better to lose progress on the hack than to take damage while unable to defend yourself.
After rebooting the first Lim Regulator, the path forward opens into a new corridor, but you will immediately encounter a Signal Jammer. Signal Jammers are devices that disrupt your hacking ability when you are within their range. They appear as small pulsing nodes mounted on walls or ceilings, emitting a visible interference pattern. You cannot hack anything while a Signal Jammer is active nearby.
The strategy for Signal Jammers is straightforward but requires quick execution. First, locate the Jammer using Diana’s Scanner. It will appear as a red-highlighted node on your scan. Then, physically destroy it with your weapons. Signal Jammers are fragile and go down in just a few shots from any weapon. Once destroyed, your hacking ability returns to normal.
Forum players consistently rank Signal Jammers as one of the most frustrating mechanics in Terra Dome. The key tip I can share is to always destroy Signal Jammers before attempting any hack in a new room. Rushing into a hack while a Jammer is active will just waste your time and leave you vulnerable to enemies. Some rooms have multiple Jammers, so scan the entire area before proceeding. This approach saves you from the frustration of getting halfway through a hack only to discover a second Jammer you missed.
After the first Lim Regulator room, look for a side corridor on the west side of the next hallway. This leads to a small storage room containing a Safe Box with a Mod and an Upgrade Component. The corridor is partially hidden behind overgrown vegetation, so use the Scanner if you have trouble finding it. The Mod in this Safe Box is a random drop from a small pool, but it tends to be either a damage boost or a fire rate increase. Both are excellent options.
There is also a REM in this section. Look for it on a raised platform above the first cultivation corridor. You can reach it by climbing the ladder on the east wall near the corridor entrance. The platform is narrow, so watch your footing. The REM contains a log entry from a botanist who worked in the Plant Factory before the station was abandoned.
Continuing through the Plant Factory, you will reach the second Lim Regulator in a greenhouse-style room with glass ceilings. Before hacking it, clear the enemy wave that spawns. This wave consists of two Creepers and three Crawlers, which can overwhelm you if you are not prepared. Use the greenhouse planters as cover and pick off the Crawlers first before focusing on the Creepers. The glass ceiling panels can shatter during combat, creating debris on the floor that slows movement, so be aware of that hazard.
Once the second Lim Regulator is rebooted, the Plant Factory section is complete. A door opens on the north side of the greenhouse room, leading to a corridor that connects to the Eco Modeling Lab. Take a moment to check your supplies before moving on. The Eco Modeling Lab is a longer section with several enemy encounters and no Unit Printer until the Center Hall.
The Eco Modeling Lab is the second major block in Terra Dome and introduces Hacking Mode chips, new enemy types, and some of the trickiest collectible locations in Sector 3. This area focuses on ecological simulation and modeling systems, and the environment reflects that with holographic displays and simulation chambers. Plan to spend 20 to 30 minutes in this section on a first playthrough.
Early in the Eco Modeling Lab, you will find a Hacking Node that grants you Hacking Mode chips. These are a new upgrade system that modifies your hacking ability with different effects. Each chip provides a passive bonus during hacking sequences, such as extended timers, slower node movement, or reduced interference from Signal Jammers.
I recommend prioritizing the Timer Extension chip first. It adds three seconds to every hacking sequence, which makes a massive difference during the more complex hacks later in the sector. After that, go for the Node Stability chip, which slows down the movement speed of data nodes during alignment sequences. These two chips together make Lim Regulator reboots dramatically easier.
To equip chips, open your inventory and navigate to the Hacking tab. You can have up to two chips active at a time. Experiment with different combinations to find what works best for your playstyle. The chips you find in Eco Modeling Lab will serve you well for the rest of the game, not just this sector. I kept the Timer Extension equipped for the entire remainder of my playthrough.
The third chip available in this area is the Jammer Resistance chip, which reduces the effective range of Signal Jammers by 50 percent. This is situational but extremely helpful in the Soil Research area where Jammers are more numerous. If you struggle with the Jammer sections, swap out one of your other chips for this one temporarily.
The Eco Modeling Lab is divided into simulation chambers that you progress through linearly. Each chamber has a specific environmental theme: desert, ocean, and forest. The chambers are self-contained rooms where you need to complete an objective to unlock the exit. The simulation theme affects the terrain, hazards, and enemy types you encounter.
In the Desert Simulation chamber, you need to reboot a Lim Regulator while fighting off waves of enemies. The chamber has limited cover, so keep moving. The sand dunes provide some elevation advantage for ranged attacks. Enemy composition here is two Heavy Sentries and four Crawlers. Focus down the Crawlers first since they move fast and flank you, then take your time with the Heavies. The Heavy Sentries in the desert simulation have a tendency to cluster on the elevated dune positions, so use the low ground to break their line of sight.
The Ocean Simulation chamber features a flooded floor that slows your movement. This makes dodge-rolling less effective, so rely more on blocking and precise shooting. A Filament Mass enemy guards the exit here. Filament Masses are large, amorphous enemies that split into smaller versions when damaged. Use explosive weapons like Sticky Bombs to damage all segments simultaneously rather than picking them apart one by one. The flooded floor also has shallow and deep sections. Stay in the shallow areas where your movement is only slightly slowed. The deep sections reduce your speed dramatically and make you an easy target.
The Forest Simulation chamber is where things get tricky. This room has multiple hidden walls and holo-walls that conceal collectibles and shortcuts. Activate Diana’s enhanced Scanner immediately upon entering. The Scanner will reveal three hidden passages in this room. One contains a Gen Chip, one has a Safe Box with a Pure Lunum, and the third is a shortcut to the exit that lets you bypass a combat encounter. If you are going for all collectibles, skip the shortcut and take the long route through the combat area.
Hidden walls in Terra Dome look identical to regular walls but can be destroyed with weapons or bypassed with hacking. Holo-walls are holographic projections that appear solid but are actually passable. Both types conceal secrets, and the enhanced Scanner is the only reliable way to find them. This is why the Scanner upgrade in the entrance area is so important.
When you see a wall highlighted by the Scanner with a blue shimmer, that is a hidden wall. Shoot it a few times with any weapon to break it open. Holo-walls appear with a faint green shimmer when scanned. Simply walk through them. Players frequently miss these because they look completely normal without the Scanner active. I recommend scanning every new room you enter as a habit throughout the entire sector.
Some hidden walls require specific weapons to break. The standard walls go down to any weapon fire, but reinforced walls need the Crusher or Sticky Bombs to destroy. If you shoot a hidden wall and it does not break after several shots, switch to an explosive weapon. The Scanner will indicate reinforced walls with a red shimmer instead of blue.
The Eco Modeling Lab has one of the highest collectible densities in the sector. Here is what you can find, organized by simulation chamber:
Gen Chip 1: Inside the Desert Simulation chamber, behind a destructible wall on the east side. Use the Scanner to locate it, then shoot the wall to reveal a small alcove with the chip. This is a standard destructible wall, so any weapon works.
Gen Chip 2: In the corridor connecting the Ocean and Forest simulation chambers. Look for a side passage on the north wall that leads to a dead-end room with the chip on a console. There is no hidden wall here, the passage is just easy to walk past because it blends with the corridor architecture.
Safe Box: Inside the Forest Simulation, behind a holo-wall on the south side. The Scanner reveals the passage with a green shimmer. Walk through the holo-wall to find the Safe Box. It contains Pure Lunum and a Weapon Mod. The Weapon Mod here is typically one of the better options in Sector 3, so do not skip this one.
REM (Read Earth Memory): On the upper walkway of the Ocean Simulation chamber. Climb the ladder near the entrance and follow the catwalk to a small platform overlooking the chamber. The REM is on a pedestal at the end. This walkway is partially submerged, so move carefully to avoid slipping off the edge.
After clearing the Forest Simulation and collecting everything, proceed through the north exit. This leads to a corridor with the third Lim Regulator. Reboot it to restore power to the Center Hall area, which opens the path to the next section of Terra Dome. The Center Hall is a hub area where you can finally rest, craft, and upgrade before the more challenging sections ahead.
This is the narrative heart of Sector 3. You will finally encounter Eight, a key character in Pragmata’s story, and then navigate the confusing Soil Research area to free them. This section is where many players get stuck, particularly in the Soil Research maze, so I will be as detailed as possible with navigation instructions.
After rebooting the third Lim Regulator in the Eco Modeling Lab, backtrack to the main dome corridor. A previously locked door on the upper level is now open. Take the elevator up to the Center Hall Upper Floor. This is a hub area with multiple branching paths, a Unit Printer for crafting, and a shelter upgrade station. Think of it as your base of operations for the second half of Sector 3.
At the Center Hall, take the opportunity to upgrade your weapons and craft any supplies you need. I recommend stocking up on healing items and Sticky Bombs. If you have been collecting Upgrade Components throughout the sector, you should have enough to upgrade at least one weapon to its next tier. The Lancer upgrade is particularly worthwhile since it increases fire rate and damage against unshielded enemies. If you have spare components, the Pulse Carbine upgrade is the next priority for the shield-breaking bonus.
The Center Hall also contains the Shelter Level 2 upgrade station. Upgrading your shelter to Level 2 provides several important benefits: increased healing item capacity from five to eight, an additional weapon slot so you can carry three weapons simultaneously, and access to Training Simulations from the Center Hall terminal.
The upgrade requires a specific set of components that you should have collected from Safe Boxes in the previous blocks. You need two Upgrade Components and one Firmware Updater. If you have been following this guide and opening every Safe Box, you will have all three. If you are missing components, check the collectibles reference section later in this guide. I have listed every Safe Box and its contents by block so you can backtrack and pick up anything you missed.
The additional weapon slot from Shelter Level 2 is particularly valuable. I recommend equipping the Lancer, Pulse Carbine, and Crusher as your three weapons. This gives you coverage for fast enemies, shielded enemies, and armored targets. The Crusher was less useful in previous sectors but becomes important again in Soil Research where SectorGuards are common.
From the Center Hall, take the east corridor toward the Soil Research area. The corridor is long and dimly lit, with containment cells visible through windows on both sides. About halfway down the corridor, a cutscene triggers showing Eight trapped inside a containment field at the far end. Diana comments that Eight is being held by the sector’s security system and you need to disable the containment by reaching the control room in Soil Research.
You cannot free Eight directly at this point. The containment field is too strong for your current abilities. You need to complete the Soil Research area first, which involves navigating through a series of interconnected laboratories, rebooting Lim Regulators, and ultimately reaching the Terrarium control room where the master security terminal is located.
The cutscene also reveals some story context about Eight and their connection to the Cradle station. Pay attention to the dialogue here because it foreshadows events in later sectors. Diana provides additional commentary if you interact with the containment field after the cutscene, which adds more context to the story.
Soil Research is where the pathing gets confusing, and this is the section where I see the most questions from players on forums and Reddit. The area is a maze of interconnected labs with multiple levels and dead ends. Here is a step-by-step navigation guide to help you through it without getting turned around.
Step 1: Enter Soil Research from the east corridor. The first room is a reception area with a Unit Printer on the left. Stock up on supplies here because you will not find another Printer for a while. There is also a Training Data item on a console behind the printer. Pick it up before moving on.
Step 2: Take the north door from the reception area into the Main Lab. This is a large multi-level room with catwalks and equipment stations. Clear the enemies here: two Heavy Sentries, one Creeper, and a new enemy type called the SectorGuard. SectorGuards are armored bots with energy shields that require concentrated fire to break. Use the Pulse Carbine on the shield until it breaks, then switch to the Lancer for maximum damage on the exposed bot. The Crusher also works well against SectorGuards once the shield is down because its heavy rounds stagger them.
Step 3: After clearing the Main Lab, take the stairs on the east side up to the second level. Follow the catwalk north to reach a small control room with the fourth Lim Regulator. There is a Training Data item on a table next to the terminal. Pick it up before or after rebooting the regulator. Rebooting restores environmental controls to the lower labs, which opens new paths and disables some hazards in the rooms below.
Step 4: Return to the ground floor of the Main Lab. A previously sealed door on the west side is now open. Go through it into the Sample Analysis corridor. This corridor has a Signal Jammer at the far end, so destroy it before attempting any hacks. The corridor also has a Training Data item on a shelf in a side room just before the Signal Jammer. The side room door is unmarked but always open.
Step 5: The Sample Analysis corridor leads to the Soil Core Lab. This room contains a Filament Mass encounter and the fifth Lim Regulator. The Filament Mass here is stronger than the one in the Ocean Simulation, so bring Sticky Bombs and be prepared for a longer fight. The Filament Mass splits into four segments instead of three, and each segment moves faster. Focus damage on individual segments to kill them before they can reform. Clear the room, reboot the Lim Regulator, and a passage opens in the north wall.
Step 6: The north passage leads to a short corridor ending at a sealed door with a hacking terminal. This is the entrance to the Terrarium, where you will find the controls to free Eight. Before hacking the door, check the small room on the left side of the corridor for a Safe Box containing Pure Lunum and a Gen Chip. There is also a REM behind a hidden wall in this corridor. Use the Scanner to find it on the right wall near the Terrarium door. Shoot the wall to access the alcove.
If you find yourself going in circles in Soil Research, look for the green overhead lights. These mark the main path forward. Red overhead lights indicate side rooms with collectibles. This color coding is consistent throughout the area and can help you distinguish between the main path and optional exploration routes.
If you upgraded your shelter to Level 2 earlier, you now have access to Training Simulations from the Center Hall terminal. These are optional combat challenges that reward you with rare Upgrade Components and Mods upon completion. I highly recommend doing at least the first two simulations before proceeding to the Garden Keeper boss fight. The rewards provide a meaningful power boost that makes the boss significantly more manageable.
Simulation 1: Basic Combat Training. This is a straightforward wave-based challenge against Crawlers and Sentries. Five waves total, with increasing enemy counts. The reward is an Upgrade Component and 500 experience points. Use this to practice your dodge timing and weapon switching under pressure.
Simulation 2: Advanced Combat Training. Features Creepers and SectorGuards in three waves. The final wave pits you against two SectorGuards and three Creepers simultaneously. The reward is a Weapon Mod and 800 experience points. This simulation is excellent practice for the Garden Keeper fight since it forces you to manage multiple enemy types simultaneously.
Simulation 3: Hacking Challenge. Tests your hacking speed and accuracy under time pressure. You need to complete five hacking sequences with decreasing time limits. The reward is a rare Firmware Updater and 1000 experience points. This simulation is tough but the Firmware Updater is worth the effort if you are a completionist.
Each simulation can be replayed, but you only earn the rewards the first time. If you fail, you can retry immediately. The difficulty is fixed and does not scale with your level, so the simulations become easier as you upgrade your gear.
Training Data items are scattered throughout Soil Research and are needed to unlock higher-tier Training Simulations. There are three Training Data items in this area, and each one unlocks the next simulation in sequence:
Training Data 1: In the reception area of Soil Research, on a console behind the Unit Printer. Easy to miss if you do not explore behind the printer. This unlocks Simulation 1.
Training Data 2: On the second level catwalk of the Main Lab, near the fourth Lim Regulator. It is on a small table next to the regulator terminal. This unlocks Simulation 2.
Training Data 3: In the Sample Analysis corridor, on a shelf in the side room just before the Signal Jammer. The room is unmarked but the door is open. This unlocks Simulation 3.
You can collect the Training Data in any order, but the simulations unlock sequentially. So even if you find Training Data 3 first, you still need to complete Simulations 1 and 2 before Simulation 3 becomes available.
After completing the Soil Research area and reaching the Terrarium control room, interact with the main terminal to initiate the sequence that deactivates Eight’s containment field. This triggers a lengthy cutscene where Eight is freed and joins your team as a support character. Eight provides unique abilities that are essential for the upcoming boss fight and change how you approach combat for the rest of the game.
Eight’s primary ability is a defensive shield that absorbs damage for a short duration, roughly 8 seconds at base level. This becomes available immediately after freeing them and is key to surviving the Garden Keeper boss fight. Activate the shield with the companion button when you see a big attack coming. Eight also provides passive buffs to your hacking speed, which makes the remaining Lim Regulator reboots much easier.
The cutscene after freeing Eight is one of the more emotional moments in Pragmata’s story. Without spoiling too much, you learn about Eight’s connection to the station and their reasons for being trapped. The dialogue here adds significant context to the overall narrative and is worth watching even if you usually skip cutscenes.
The Garden Keeper is the boss of Sector 3 and guards the exit from the Terra Dome. It is a massive robot covered in synthetic vegetation, standing roughly three times the player’s height. It has multiple attack phases that require different strategies, and the fight tests everything you have learned in Sector 3 so far. This is one of the tougher boss fights in Pragmata, so come prepared with full health, plenty of healing items, and your best weapons upgraded.
Before the fight, make sure you have the following setup. Primary weapon: Lancer with the damage upgrade. Secondary weapon: Pulse Carbine for shield-breaking during Phase 2. Third slot: Crusher for staggering the boss during Phase 3. Utility: Sticky Bombs for add clear throughout the fight. Diana’s Scanner should be active at all times during the fight to reveal the boss’s weak points.
Having Eight’s shield ability available is strongly recommended. If you skipped freeing Eight earlier, you will need to go back and complete that section first. The shield provides a critical damage-absorbing window during the boss’s most devastating attacks, particularly the charging rush in Phase 3. Without it, you will need to rely entirely on dodge timing, which is much harder.
Craft extra healing items at the Unit Printer before entering the boss arena. You can access the arena from the Terrarium control room. The door to the arena is on the north side of the room, and it locks behind you once you enter. There is no way to leave mid-fight, so make sure you are prepared.
The Garden Keeper starts the fight in the center of a large circular arena with multiple levels. During Phase 1, the boss uses three primary attacks: a sweeping vine attack that covers a wide arc in front of it, a projectile barrage where it launches seed pods that explode on impact, and a ground slam that sends shockwaves across the arena floor.
The key to Phase 1 is positioning. Stay at mid-range, close enough to deal consistent damage but far enough to react to the vine sweep. When you see the boss wind up the ground slam, immediately dodge backward twice to avoid the shockwave. The seed pod barrage can be avoided by running laterally; do not try to dodge-roll through it. The pods leave burning patches on the ground where they land, so avoid those areas for a few seconds until they dissipate.
Use the Lancer during Phase 1 for consistent damage to the boss’s core, which is its main weak point. The core glows orange and is located on the boss’s chest. Diana’s Scanner will highlight it with a blue outline for easier targeting. Focus all your fire on the core until the boss transitions to Phase 2. This phase is the most forgiving, so use it to learn the boss’s attack patterns and timing.
The arena has several destructible pillars that provide temporary cover. These break after absorbing a few hits, so do not rely on them for long. The upper level of the arena has a catwalk that gives you elevation advantage, but the boss can hit you with the vine sweep up there too. I prefer fighting on the ground floor for better mobility.
At approximately 60% health, the Garden Keeper activates an energy shield around its core. This shield is immune to standard weapons. To break it, you need to target the four Lim Regulator nodes located around the arena. Each node is mounted on a pillar and glows with the same orange light as the boss’s core.
During this phase, the boss continues attacking while spawning Creeper bots to harass you. The Creepers are a significant threat because they distract you from the Lim Regulator nodes. Use Sticky Bombs to deal with Creeper spawns quickly, then focus on the nearest node. The boss’s attack pattern stays the same from Phase 1, so you should be comfortable dodging by now.
Hack each Lim Regulator node to disable it. You need to complete a quick hacking sequence at each one, so clear nearby enemies first. Having the Hacking Mode Timer Extension chip equipped makes these sequences much easier under pressure. Once all four nodes are disabled, the boss’s shield drops and it enters a vulnerable state for about 15 seconds. Unload everything you have during this window. Eight’s shield ability is perfect here, giving you uninterrupted damage time while the boss is stunned.
If you take too long disabling the nodes, the boss reactivates its shield and you need to start the node sequence over. The timer for this reset is approximately 90 seconds. Focus on efficiency rather than perfection. Get the nodes disabled as fast as possible, even if you take some hits along the way.
Below 30% health, the Garden Keeper enters its enraged phase. Attack speed increases noticeably, the vine sweep becomes a double sweep that covers the entire front arc, and the seed pod barrage fires twice as many projectiles in a wider spread. The boss also gains a new attack: a charging rush that covers the entire arena in a straight line.
The charging rush is telegraphed by the boss backing up and lowering its head. When you see this animation, immediately move to the side and get behind cover. The charge deals massive damage and can instantly down you if you are at low health. The charge also breaks any destructible pillars in its path, so debris will scatter across the arena floor.
During Phase 3, the boss’s core is permanently exposed but its damage output is significantly higher. Play cautiously, using Eight’s shield to absorb the big hits while you maintain consistent damage on the core. Sticky Bombs are effective for staggering the boss briefly, giving you breathing room to heal or reposition. The Crusher is also useful here because its heavy rounds can interrupt some of the boss’s attack animations.
If you are struggling with this fight, go back and complete the Training Simulations in the Center Hall. The Upgrade Components and Mods you earn will make a noticeable difference in your damage output and survivability. Also, make sure your weapons are fully upgraded at the Unit Printer before attempting the boss. Every point of damage matters in a fight this long.
The fight typically takes about 5 to 8 minutes depending on your weapon level and how efficiently you handle the shield phase. Do not get greedy with damage during the enraged phase. One death means restarting the entire fight, and the boss does not checkpoint between phases. Play it safe, chip away at the health bar, and you will get there.
After defeating the Garden Keeper, collect the Mini Cabin Figure it drops. This is a unique collectible that counts toward your 100% completion for Sector 3. A door opens on the north side of the arena, leading to the Terra Dome exit and a shuttle that takes you to the next sector. There is also an Escape Hatch in the arena accessible after the fight. Check the upper level behind a destructible wall on the east side. Use the Scanner to find it.
This section provides a quick-reference for every collectible in Sector 3. Use this to track your progress and find anything you might have missed. I have organized everything by block so you can easily backtrack to specific areas. All locations assume you have the Scanner upgrade from the Terra Dome Entrance.
Safe Box 1: Left path from the first fork inside the entrance corridor. Contains an Upgrade Component and a Firmware Updater.
Scanner Upgrade: Hidden alcove on the east side of the main chamber. Use Diana’s Scanner to reveal the passage. This is essential for finding hidden walls throughout the rest of the sector.
Safe Box 2: Side corridor on the west side of the hallway after the first Lim Regulator room. Contains a Mod and an Upgrade Component. The corridor is hidden behind vegetation.
REM 1: On the upper walkway of the first Lim Regulator room. Climb the ladder on the west side and follow the catwalk to find the REM on a pedestal. Contains a botanist’s log entry.
Gen Chip 1: Desert Simulation chamber, behind a destructible wall on the east side. Use Scanner to locate, then shoot the wall to reveal the alcove.
Gen Chip 2: Corridor between Ocean and Forest simulation chambers. Side passage on the north wall leads to a dead-end room with the chip on a console.
Safe Box 3: Forest Simulation chamber, behind a holo-wall on the south side. Scanner reveals the passage. Contains Pure Lunum and a Weapon Mod.
REM 2: Upper walkway of the Ocean Simulation chamber. Climb the ladder near the entrance and follow the catwalk to the end platform.
Escape Hatch 1: On the upper level of the Center Hall, near the Shelter upgrade station. Opens a shortcut back to the Terra Dome Entrance.
Mini Cabin Figure 1: On a shelf in the storage room adjacent to the Unit Printer. Easy to miss, check behind the printer.
Training Data 1: Reception area of Soil Research, on a console behind the Unit Printer.
Training Data 2: Second level catwalk of the Main Lab, near the fourth Lim Regulator.
Training Data 3: Sample Analysis corridor, on a shelf in the side room before the Signal Jammer.
Safe Box 4: Small room on the left side of the corridor leading to the Terrarium entrance. Contains Pure Lunum and a Gen Chip.
REM 3: In the corridor before the Terrarium, behind a hidden wall on the right side near the Terrarium door. Use Scanner to locate and shoot the wall to access the alcove.
Mini Cabin Figure 2: Dropped by the Garden Keeper boss after defeating it. Automatically collected.
Escape Hatch 2: In the Garden Keeper arena, on the upper level behind a destructible wall on the east side. Accessible after defeating the boss. Use Scanner to locate.
Here is a quick checklist to verify you have everything in Terra Dome:
If your numbers match the checklist above, you have achieved 100% completion for Sector 3. If anything is missing, use the detailed locations listed earlier in this section to backtrack and pick up what you need. Remember that enemies respawn when you revisit areas, but collectibles you have already picked up stay collected.
To enter the Terra Dome in Sector 3, approach the main entrance on the north side of the dome structure and use your hacking ability on the terminal beside the sealed door. This requires completing Sectors 1 and 2 first. A brief cutscene plays, and then you can enter the dome interior. Make sure you have your weapons upgraded and supplies stocked before entering.
There are 4 Safe Boxes in Terra Dome: one in the Entrance area on the left path from the first fork, one in the Plant Factory in a side corridor west of the first Lim Regulator, one in the Eco Modeling Lab Forest Simulation behind a holo-wall, and one in Soil Research in a side room before the Terrarium entrance. Use Diana’s Scanner upgrade to reveal hidden walls and passages that conceal some of these locations. The Scanner upgrade itself is found in the Terra Dome Entrance.
The Garden Keeper boss has three phases. In Phase 1 (100% to 60% health), focus fire on the glowing orange core on its chest while dodging vine sweeps and seed pod barrages. In Phase 2 (60% to 30%), hack the four Lim Regulator nodes around the arena to break the boss’s energy shield, then damage the core during the 15-second vulnerability window. In Phase 3 (below 30%), the core stays exposed but attack speed increases dramatically. Use Eight’s shield ability to absorb big hits and maintain consistent damage on the core to finish the fight.
There are two Gen Chips in the Eco Modeling Lab. The first is in the Desert Simulation chamber behind a destructible wall on the east side, which Diana’s Scanner can reveal. The second is in the corridor between the Ocean and Forest simulation chambers, accessible through a side passage on the north wall that leads to a dead-end room with the chip on a console. A third Gen Chip is found in Soil Research in a side room before the Terrarium entrance.
To free Eight, you must navigate through the Soil Research area, reboot all Lim Regulators in the Main Lab and Soil Core Lab, then reach the Terrarium control room at the end of the sector. Interact with the main terminal in the control room to deactivate Eight’s containment field. This triggers a cutscene and Eight joins your team, providing a defensive shield ability that is essential for the Garden Keeper boss fight.
Completing the Pragmata Walkthrough for Sector 3 Terra Dome is a major milestone in the game. You have navigated through five distinct blocks, rebooted multiple Lim Regulators, dealt with Signal Jammers and Creeper bots, freed Eight from containment, and taken down the Garden Keeper boss. That is a solid accomplishment, especially if you managed to hit 100% collectibles along the way.
The upgrades you earned in Terra Dome will carry you forward into the remaining sectors. The Scanner upgrade makes exploring future areas much more manageable, and Eight’s shield ability is one of the most useful support skills in the game. The Hacking Mode chips you collected in Eco Modeling Lab also become increasingly valuable as hacking sequences get more complex in later sectors.
If you missed any collectibles, remember that you can revisit Terra Dome at any time through the sector select menu. The enemies respawn, but collectibles you have already picked up stay collected. This makes cleanup runs quick and painless if you are going for the 100% achievement. The Escape Hatches you opened also remain active, so you can fast-travel between blocks without retracing your steps through the entire sector.
Sector 4 picks up immediately after the Terra Dome exit, and the difficulty ramps up considerably. Take the time to upgrade your weapons and stock up on supplies before moving on. The skills you developed fighting Creepers, managing Signal Jammers, and navigating complex environments in Terra Dome will serve you well in the challenges ahead. Good luck out there.
