
About the game
TerraTech Legion, a chaotic Bullet Heaven Builder. Build the ultimate battle vehicle block by block and survive waves of robotic foes, ramming them at speed and shooting infinite projectiles.
Planets are falling. Build something that can take them back.
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.
Build a Tech that fights the way you do...
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.
Pick your jockey...
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.
Survive the swarm...
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.
Embrace the endless...
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.
Description from the publisher’s Microsoft Store listing.
Trailer
Official trailer · Mythwright on YouTube · Watch on YouTube ↗Loads from youtube-nocookie.com only when you press play.
Screenshots
Tap to expand · from the Microsoft Store listingAlso on Game Pass
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Game details and art come from each game’s official Microsoft Store listing (cover images are cropped from those official images, or from publisher press kits, with our title overlay; nothing is AI-generated); art © the respective publishers, used for editorial review. Game Pass membership from Microsoft’s public Game Pass catalog, checked Sep 29, 2026. Critic scores appear only where a real aggregate exists; otherwise “Not yet reported”.