About the Game
A swarm of AI bots is tearing across the galaxy, assimilating everything in its path. As a maverick Tech jockey with nerves of steel, it's on you to clean up the carnage. Build something fast enough, mean enough or heavy enough to push back, then smash it all into scrap.
TerraTech Legion is a bullet heaven from Payload Studios, the team behind the original TerraTech. It takes the block-based vehicle building the series is known for and drops it into a roguelite full of swarms, bosses, and bad ideas worth trying.
With 200+ blocks across weapons, propulsion and utility, there’s no shortage of wild ideas that just might work. Wheels, boosters, buzzsaws, orbital lasers - snap them together however you like. Each of the four TerraTech Corporations brings its own set of blocks and abilities to the table, so your starting point shapes what you build and how you fight.
How it all comes together is up to you. Stack on the weapons and you're a rolling gun platform. Go heavy at the front and you're built to ram. Pile on the boosters and you're fast, fragile, and hard to catch. Where you put things matters - weight, balance, and whether you can actually steer it all come into play.
Jean Pierre hits hard and keeps on hitting - built for impact and impossible to slow down. Mikela plays the odds by stunning enemies and rerolling her luck until the rarest blocks fall her way. Sam phases through enemies and doubles down with critical hits. Cepheid drifts through the battlefield leaving a trail of plasma in her wake. Each character comes with their own starter build and playstyle - find the one that fits how you fight.
Four distinct planets, each crawling with bots, outposts and factories, all building to a brutal planetary boss. Upgrade your skills between missions to up your game and bring the fury on each new run.
How long can you last? Drop into an endless onslaught of Legion bots and bosses with no checkpoints, no campaign and no way out. Just you, your build, and your high score.
We think you'll love TerraTech Legion if you enjoy…
Vampire Survivors, Brotato, Deep Rock Galactic: Survivor, Soulstone Survivors, Halls of Torment, Death Must Die, BALL x PIT, Megabonk, The Spell Brigade, Yet Another Zombie Survivors, Grind Survivors, Temtem: Swarm, Nova Drift, Trailmakers, Main Assembly, Instruments of Destruction, Scrap Mechanic, Space Engineers, and From the Depths
Screenshots
11 images
Version Information
Steam Patch Notes
Official update history
In the run‑up to promoting the latest unstable update to the default version of TerraTech Legion, we want to improve the quality of the build by finding and fixing as many bugs as possible, as well as refining the overall game balance.
How to access the Unstable Branch
Right‑click TerraTech Legion in your Steam Library and select Properties.
Open the Betas tab.
Select the Beta Participation dropdown.
Choose “unstable – work‑in‑progress version”.
Steam will update your game, and you’ll now be playing on the unstable branch.
How to send feedback and join the community
Join our Discord server and pick up the TerraTech Legion Unstable role via the #chat-role-assign! channel. This will give you access to the private unstable channel where you can share feedback and discuss spoilers.
Remember: Always back up your save files before switching to the unstable branch.
Bug Fixes
Fix for the crash when using the Star Flail.
Fix for the scrap bar at the bottom of the screen sometimes getting stuck.
Fix for the occasional crash when entering build mode whilst a boss attacks.
Seismic Charge Launcher didn't require all APs to attach when it should.
Stats could be duplicated by attaching and removing blocks with buffs.
⚠️Please note: This update is on Steam beta branch unstable - Work-in-progress version and may be unstable in places.
[td colspan="2"]In the run up to promoting the latest unstable update to the default version of TerraTech Legion, we want to improve the quality of the build by finding and fixing as many bugs as possible and refining how the game is balanced.
To play the unstable:
Right click TerraTech Legion in your Steam library, then select the "Properties" option from the drop down list.
Now select "Betas" and then select the "Beta Participation" drop down box.
Select the "unstable - work-in-progress version" from the drop down list.
Your game will now update, and you will be playing on the unstable branch.
To send us your feedback and join the community:
Join our discord server and select the unstable role via the #role-opt-in! channel. This will add you to the secret unstable channel where you can discuss your feedback/spoilers.
Remember to always back up your save games before switching to the unstable branch.
Bug Fixes
Added some more speculative fixes for long survival mode run crashes.
Potential fix for the issue where all the enemies and scenery disappear.
Removed the Dynamic Differential and the Performance Suspension blocks as they need some more time in the oven.
Reduced memory usage by around 2GB for the swamp planet, which should fix crashes some players were seeing loading into it.
Fixed collision on Thunderbolt Ballistic Assist so it doesn’t stop you putting blocks directly above it.
Improved performance with very large amounts of scrap on the floor (looking at you, crazy Survive Mode players!).
Fixed an issue where you could make your Tech’s acceleration go negative effectively swapping forwards and backwards.
Fixed overflowing numbers in contract tracking, and overflowing score in Survive Mode.
Reverted the new Survival wave designs back to the older versions until we have fixed an issue with XP drop scaling.
Hi Prospectors,
Our 1.0.6 Unstable Update brings fresh Blocks, improvements to Survival Mode and new ways to finesse your Tech build.
Firstly, we’ve spent some time creating new Blocks to fill a few gaps we identified in the Corporation Block pools. Our goal is to provide a more rounded offering for each Corporation, covering ranged, impact, and drone Blocks. It also gave us a chance to share some of our…wilder ideas (looking at you, Star Flail).
We’ve also heard that many of you want more ways to build into a particular Tech damage type. Our new crate‑reward flow added to the end of large encounters means you’ll now be able to choose the weapon‑type crate that best suits your Tech.
Beyond this, we’ve made several quality‑of‑life improvements to Survival Mode, with a strong focus on stability. We believe we’ve fixed those run‑ending crashes, though they can be tricky to track down, so please bear with us.
Let’s dive into the details…
[table equalcells="1" colwidth=""][th colspan="2"]⚠️Please note: This update is on Steam beta branch unstable - Work-in-progress version and may be unstable in places.
[td colspan="2"]In the run up to promoting the latest unstable update to the default version of TerraTech Legion, we want to improve the quality of the build by finding and fixing as many bugs as possible and refining how the game is balanced.
To play the unstable:
Right click TerraTech Legion in your Steam library, then select the "Properties" option from the drop down list.
Now select "Betas" and then select the "Beta Participation" drop down box.
Select the "unstable - work-in-progress version" from the drop down list.
Your game will now update, and you will be playing on the unstable branch.
To send us your feedback and join the community:
Join our discord server and select the unstable role via the #role-opt-in! channel. This will add you to the secret unstable channel where you can discuss your feedback/spoilers.
Remember to always back up your save games before switching to the unstable branch.
New Corporation Blocks
[table equalcells="1" colwidth=",,"][img src="{STEAM_CLAN_IMAGE}/45651991/1279d291dba67571d951feec997986f439edc996.gif"]
[img src="{STEAM_CLAN_IMAGE}/45651991/29b65598ef43ce5e71785ef998a2a5803aa4dc3c.gif"]
[img src="{STEAM_CLAN_IMAGE}/45651991/03bb3e6cf5388ce5c55baa9ccc94a3ae80dd0912.gif"]
GSO
Spider GPMG
A ballistic weapon with 360 degree firing arc
Sliver
A impact weapon that fires a sharp metal blade out which returns back, damaging everything in its path
Performance Suspension
A wheel mount that boosts stats
Triple Damage Mount
A version of the damage mount with more APs for three times the destruction
GeoCorp
Triple Bolt Driver
A spread firing version of the bolt driver
Seismic Charge Launcher
Fires seismic charges that do impact damage in a large area
Dynamic Differential
A wheel mount that empowers any Grip attached
Hawkeye
D-52 Bomber
Calls in a bomber aircraft that leaves a wake of devastation
Thunderbolt Ballistic Assist
High speed strafing runs from allied aircraft crisscross the battlefield
Bot Cutter
A super sharp blade that cuts through Legion like butter
Sprinkler Autogun
This autogun fires in a spray of bullets across a 180 degree arc
BetterFuture
Star Flail
A giant ball attached to your Tech by an unbreakable energy tether
EMP Carbine
A ballistic weapon with an electro-stun charge in each bullet
Stun Repulsor
This energy ram does incredible knockback and stuns enemies, allowing you to slide right by
Location Reward Drop Pod
Shape your run with the rewards offered from seeking out and beating Challenges.
New in this version - completing locations on the map (called out with the ‘?’ icon on your screen edge) now provide a reward drop pod instead of random rewards. Trigger the location by driving up onto the landing pad and defeat the big enemy or swarm of enemies to call down a special drop that will allow you to pick the reward crate that best suits your needs.
Choose from:
Ballistic
Impact
Energy
Drone
Precision
Explosive
Or, if you are feeling lucky, a Wild Card crate.
[img src="{STEAM_CLAN_IMAGE}/45651991/585a7534df0893055bde9548acc5fc53e72d7cfb.gif"]
Survival Mode
Created some new waves with new formations and enemy types
Added a run timer to the HUD.
Improved boss health bars so you can track the health of multiple bosses
Updated the HUD colours to give Survive its own visual identity.
More map Locations, big and small
Changed end-of-run message so it doesn’t always say you failed
Balance
Initial Tech wheels no longer show up for other Corporations in crates
Rerolls now take the rerolled Block into account when determining rarity of rerolled Blocks.
UI
Added an arrow showing your Tech’s facing to the minimap
Improved edge of screen arrows so they avoid overlapping the minimap
Hide more of the UI when using the “View Tech” tab on the end-of-run screen
Allow zooming in a bit closer to big Techs
Bug Fixes
Fixed upgraded versions of weapons not counting towards contracts like “Drill Baby Drill”
Fixed temporary powerups not always being dropped when you destroy the structure holding them (which made them uncollectable)
Fixed enemy buff circle not always being removed when you destroy the corresponding tower
Fixed temporary powerups expiring whilst in build mode
Fixed inconsistent blocked angles on the Thunderpop Cannon
Fixed the Piston Ram and Roadblock Ram not doing any damage despite their descriptions saying they do
Fixed not being able to upgrade the Plough
Small fix to collision of the basic Hawkeye cab, which was occupying a bit more space than it looked like
Hi Prospectors,
Thanks for your feedback and bug reports. We’ve got another update to the 1.0.5 unstable branch for you to sink your teeth into, and we’re feeling close to pushing this release to main. We’re especially keen to hear your thoughts on the changes we’ve made to the Triarch Warden.
[table equalcells="1" colwidth=""][th colspan="2"]⚠️Please note: This update is on Steam beta branch unstable - Work-in-progress version and may be unstable in places.
[td colspan="2"]In the run up to promoting the latest unstable update to the default version of TerraTech Legion, we want to improve the quality of the build by finding and fixing as many bugs as possible and refining how the game is balanced.
To play the unstable:
Right click TerraTech Legion in your Steam library, then select the "Properties" option from the drop down list.
Now select "Betas" and then select the "Beta Participation" drop down box.
Select the "unstable - work-in-progress version" from the drop down list.
Your game will now update, and you will be playing on the unstable branch.
To send us your feedback and join the community:
Join our discord server and select the unstable role via the #role-opt-in! channel. This will add you to the secret unstable channel where you can discuss your feedback/spoilers.
Remember to always back up your save games before switching to the unstable branch.
Balance
Armoured bots now apply a stronger push force, helping them shove other bots aside rather than being pushed around.
Triarch Warden adjustments:
Added longer delays between actions to give you more openings to deal damage
Prevented it from walking into you during the laser phase
Reduced laser damage by 30%
Increased laser warm‑up time by roughly 20%, giving you more time to react before things get melty
Increased reroll drop chance across all planets.
Blocks
Updated stats for the GSO Stabiliser Wheel - it was previously identical to the Hawkeye Inline Raptor Wheel. It now has increased grip and improved turning speed
Set the new GEO Minelayer back to prototype status (not ready for release yet)
Added the new Salvage Optimiser block
10% increased scrap
Bugs
Fixed a rare crash that could occur during Survival Mode
Fixed layout issues in the Graphics Settings menu
Hi Prospectors,
For players who are new to Payload Studios and our games, we sometimes run an unstable branch before launching the full version for everyone. It’s a chance for us to identify any bugs or balance issues, and it’s also an opportunity for you to feedback and discuss your thoughts on our Discord server.
Whenever a new unstable version is available, we’ll make it clear by including “Unstable” in the title of the Steam blog post, as well as in the information box below.
[table equalcells="1" colwidth=""][th colspan="2"]⚠️Please note: This update is on Steam beta branch unstable - Work-in-progress version and may be unstable in places.
[td colspan="2"]In the run up to promoting the latest unstable update to the default version of TerraTech Legion, we want to improve the quality of the build by finding and fixing as many bugs as possible and refining how the game is balanced.
To play the unstable:
Right click TerraTech Legion in your Steam library, then select the "Properties" option from the drop down list.
Now select "Betas" and then select the "Beta Participation" drop down box.
Select the "unstable - work-in-progress version" from the drop down list.
Your game will now update, and you will be playing on the unstable branch.
To send us your feedback and join the community:
Join our discord server and select the unstable role via the #role-opt-in! channel. This will add you to the secret unstable channel where you can discuss your feedback/spoilers.
Remember to always back up your save games before switching to the unstable branch.
I suspect this is an update many of you have been waiting for. Block Banning and Block Recycling have now been added to the game. We go into more detail below on how each system works, but together they give you two powerful new tools to help refine and optimise your builds.
Thank you again for all your feedback and bug reports. Over the past couple of weeks we’ve been able to fix a good number of issues. And if we haven’t quite reached the ones at the top of your list yet, don’t worry, 1.0.6 is already in the works, with plenty more improvements on the way.
Without further ado, let's get in to the detail:
Block Recycling
Unwanted blocks can now be recycled during the Drop Pod build menu. Recycled blocks provide rerolls based on the block and rarity. Structure blocks only provide a fraction of a reroll, requiring multiple to be recycled, while a legendary block provides many rerolls when recycled. Progress towards a reroll is kept throughout a run, so you can freely get rid of unwanted structure blocks now, and keep the progression towards a new reroll. To help you track your rerolls we are now showing your count and max on the build menu so you know when to recycle and when to hold off because you are full up. All these extra rerolls will be quite useful as part of the new banning system, below! How to Recycle in 3 easy steps:
Drag a block from your Tech or Inventory into the jaws of the recycler.
Observe the value of the block as you hover over the recycler.
Press and hold the block in the Recycler to remove it and receive the value immediately.
[img src="{STEAM_CLAN_IMAGE}/45651991/7d7e2def58e293d0345d87a8c85d6d5bc0ae7b83.gif"]
Block Banning
To help players who want a more curated experience, we have added the ability to ban blocks when they are offered from a crate using the same resource that you use to reroll results. The prompt lives right next to the reroll button, and can be undone by clicking it a second time before a crate choice is selected. Banned blocks will no longer be a result that can be rolled from any crate offerings for the remainder of the current run. The system also pays attention to what weapons you ban, giving you less blocks that share a weapon tag with the banned block. This starts as a very minor bias - banning a single weapon would have a negligible impact on any result, but can add up over the course of a run. This allows for concentrated bans effectively eliminating a particular weapon type, for example. Of course, banning with the same resource used to reroll changes the balance of that resource, so we are injecting more of that resource into the game.
Ways to get MORE Rerolls:
Block Recycling - see above!
Character Skills and Max: the skill that provides Rerolls at the start of the run has been doubled, maxing out to 10 for a fully upgraded skill. The Max Rerolls characters can have has been increased to 15 (from 10), except Mikela who starts with a max of 20.
Increased enemy drops - an increased number of reroll drops per run.
[img src="{STEAM_CLAN_IMAGE}/45651991/bea78d61f863fd711af7cad9c50864bcbb317bd1.gif"]
Balance
Reduced the Luck requirement for the “Good Luck” objective from 100 to 85.
Reduced the unlock requirement for the Stun Weapon Mount from 100k to 20k.
Fixed the contract to unlock Bastion Tracks so it now requires 85 total Grip rather than +50% Grip modifiers.
Blocks
Renamed Ranger XXL Flak Gun to Ranger Shotgun, as it is a Ballistic weapon rather than an explosive.
Resolved duplicate names: the GEO Corp “Quantum Aegis Core” is now called “Mammoth Density Generator”.
Updated Rangefinder Core descriptions to clarify that it affects Ballistic and Energy weapons.
Firestorm Core now increases the rate of fire for all weapons.
Molotov Launchers can now be placed in all rotations when mounted on the side/front/back.
Corporation Logo Blocks now increase the chance of receiving blocks from their associated corporation.
Updated the Mammoth Density Generator (formerly GeoCorp Quantum Aegis Core):
Added the “Massive” tag
Increased health bonus from 20 to 40
Reduced boost strength by 5
UI
Added a new controller prompt at the start of runs.
Added a gamepad option to disable forward/backward movement on the left stick.
Improved several map icons for better legibility.
The contract screen now shows which character is required to unlock each contract.
Added the number of Boss Kills to the Survive mode end‑of‑run screen.
End‑of‑run screens now show docked drones on your tech for better screenshot opportunities.
Added our community playtesters to the credits.
Steam Deck
Increased the size of smaller text to improve readability on Steam Deck.
Bugs
Improved collision around the Triwarden’s legs to reduce cases of getting stuck.
Removed Fullscreen from Vulkan graphics options due to severe issues on Steam Deck and PC.
Stunned Legion bots no longer rotate to face the player.
Fixed a frame‑rate degradation issue in Survive mode.
Potential fix for a crash when upgrading weapons on the Triple Threat Corrupted Block.
Fixed an issue preventing buffs from being picked up on the Dust Bowl planet.
Fixed lingering shield VFX from Jean‑Pierre after his tech was destroyed.
Clarified the text for the Easy Desert objective to indicate that base encounters must be completed in a single run.
Respawning while flipped now correctly rights your tech.
Fixed missing muzzle flash effects on some multi‑barrel weapons.
JP’s wheel/booster penalty‑reduction skill now applies correctly to all relevant effects.
Fixed extreme lighting issues in the front end when using Vulkan drivers.
Fixed a crash/hang when driving out of the red dome during the Triwarden Boss fight.
Fixed an issue where weapon stats and tags didn’t update correctly when moving weapons on/off Precision Mounts.
Fixed a duplicate block issue in one of the BFT block packs.
Fixed an issue where some skin menu buttons would randomly appear green.
Hi Prospectors,
Thank you so much for the incredible reception to Legion’s launch yesterday. We’ve loved watching you dive in, and the feedback you’ve been sending our way has already helped us build a solid list of fixes and improvements.
On that note, we’ve spotted an issue with the Triarch Warden and wanted to get a fix out before the weekend.
Gameplay
The Triarch Warden’s laser attack now works as intended. It was hitting you even if you had avoided it.
Hello there prospectors,
Firstly, we want to say a massive thank you for all your feedback and reviews. We are really excited so many of you are playing and enjoying the demo!
We thought that you might like some more legendary weapons to play with. They will be a definite drop in the new legion location we have added as well (if you can find it). We have also fixed a few bugs and made some balance changes. We’ve also added an FAQ as we’ve seen a bunch of questions from our community over the last few days, you can read this here.
We’ve been loving seeing all of your builds and creations, please keep sharing them! If you haven’t already, join our Discord!
Until next time,
-Team Legion
Blocks
We have added some fun new legendary blocks:
Tenderiser
Hammer Time
Skewer
ZPK 16
Polished the Orbital Laser model
Pickups
All pick ups now appear over your tech for a brief moment so you don’t miss when you pick something up.
Locations
We have added a new legion themed location where you can get a guaranteed legendary weapon drop.
Balance
We have reduced the chance of getting the same legendary in a single run.
Bugs
Fixed an issue where some of the mines wouldn't trigger when near a legion bot.
Fixed an issue where some 1x1 blocks couldn’t be replaced (like for like) with the same size block.
Blaster Cannon damage is now an explosive damage type to match its icon (it was Projectile previously).
Current Release
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Uploaded May 19, 2026
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System Requirements
How to Install
TerraTech_LegionEOS.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
3.3 GB
23091309
6E3D039D
d481b94b7f9badd89ae679083384c47071bc1f7e10e25932dfff27ae9a44529d
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Download TerraTech Legion for PC with a direct link or via torrent. Get the full version of TerraTech Legion for free. TerraTech Legion is a Action released by Payload Studios.