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Watch trailer on Steam ↗GREX
Hamster On Coke Games · Published by Hamster On Coke Games · Official site ↗
Last updated 4 Oct 2026
Become a swarm. Think as one. Mutate. Multiply. Overwhelm. A roguelite auto-shooter built around hive-mind powers — craft broken builds, survive the chaos, crush enemies with sheer collective force! All to a thumping trance-techno soundtrack and neon-glow visuals.
Action, Indie, Simulation, Strategy, Casual · 2026 · More free games
Join the swarm in GREX, where you'll think as one and crush enemies through collective force. Craft unique builds and survive chaotic levels to the beat of trance-techno music.
About this game
SWARM SURVIVORS
In GREX, you don’t play a hero — you command a living swarm.
Hundreds of Grexlings move, fight, and sacrifice themselves as one organism.
You do things no single character could ever pull off.
CONTROL THE UNCONTROLLABLE
Swarm AI Combat – Your Grexlings dodge, chase, collide, and intercept automatically.
Body as Weapon – Ram enemies, surround them, shred them, overwhelm them.
Mass Sacrifice & Rebirth – Lose dozens, rebuild instantly, and come back stronger.
Shape-Shifting – Use different shapes and formations to survive.
CRAFT YOUR PERFECT SWARM
Genes – Combine gene types to create unique Grexling behaviors.
Merging – Fuse genes into higher tiers for absurd power jumps.
Passive Items – Heavy bonuses with real trade-offs.
Upgrades – Level up, boost stats, and evolve your swarm’s instinct.
Digging – Tear through the arena floor to find healing and diamonds.
ROGUELITE PROGRESSION
Unlock permanent skill tree upgrades.
Return stronger.
Break the game on purpose.
DISCOVER. MUTATE. REPEAT.
New swarm species that changes playstyle.
Rare items and exotic genes.
Endless builds that change how your entire organism behaves.
(WIP — more on the way.)
FINAL CHALLENGE: "Vanilla Mode"
Reset Skill Tree & upgrades.
Start from zero.
Defeat the final boss in pure vanilla chaos.
MUSIC, POWER, VFX
GREX is powered by a thumping trance-techno soundtrack and glowy neon VFX — swirling trails, pulsing lights, and particle storms that turn your swarm into a cosmic supernova.
GREX blends bullet-heaven chaos with deep buildcraft - but the star is your swarm.
Learn it. Shape it. Weaponize it.
Can you control the chaos you create?
Have fun Swarming,
Mike
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10
- Processor: i7
- Memory: 8 GB RAM
- Graphics: GeForce 1080
- Storage: 700 MB available space
- Additional Notes: Game uses a lot of computational power to calculate the swarm and collisions.
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10
- Processor: i9
- Memory: 16 GB RAM
- Graphics: GeForce 1080
- Storage: 700 MB available space
- Additional Notes: Game uses a lot of computational power to calculate the swarm and collisions.
Supported Languages
*languages with full audio support
Latest news
AnnouncementsOfficial
GREX Demo 2.0 Release
Hey, Mike here. It's been a long time since I posted about GREX. But hey, I just released brand new demo of the game! I've listened to your precious feedback and comments, and decided to go with what I think is the best possible version of the game.NEW DEMO: What's changed? Almost everything.More RogueliteMore GRAPHICSMore build-orientedMore skill-basedMore everything...I know it's a big change, but I sincerely hope you'll love this version.Go and play it, have fun!And please let me know what you think about it! Cheers YoursMikeRead full article on Community Announcements (HamsterOnCoke)






