
Screenshots

Watch trailer on Steam ↗Kosmass
Evgeniy Kostritsa · Published by Evgeniy Kostritsa · Official site ↗
Last updated 28 Sept 2026
A physics-based consume-to-grow game where you must expel your own mass to move, creating a delicate balance between size and survival in a beautiful VR cosmos.
Indie, Simulation · More free games
In Kosmass, navigate the delicate dance of size and survival as you consume and expel your own mass to move. Experience this unique simulation crafted by Evgeniy Kostritsa, where every action affects your journey through a beautiful VR universe.
About this game
KOSMASS is a physics-based game with classic consume-to-grow gameplay, reimagined for 3D and built for VR immersion. Start as a tiny particle in the void and embark on a journey of growth by absorbing smaller objects. But beware: to move, you must propel yourself by expelling your own mass. Find the perfect balance between control and size in a serene yet perilous universe where every action shapes your destiny.
Steam | Meta Quest
Key Features
A Delicate Balance of Mass & Momentum: Engage in the profound dance of consumption and avoidance. Your core dilemma: to move, you must spend the very mass you strive to accumulate. Master the trade-off between growing larger for safety and staying nimble for survival. Every thrust is a strategic decision.
An Evolving, Procedural Levels: Every playthrough is a unique voyage. The playground is vast, unpredictable, and full of emergent challenges tailored to your size and speed.
Unparalleled VR Immersion: Feel the scale and majesty of space firsthand. In Virtual Reality, you are placed at the heart of the action. Physically aim your thrust and feel the consequence of spending your mass to navigate, making your growth and survival feel incredibly personal and visceral.
Physics is Your Strategy: Success hinges on mastering momentum and conservation of mass. Plan your moves carefully: a quick burst of speed might save you from a larger entity, but it could also leave you dangerously small and vulnerable. Use your controllers to carefully redirect your emitted mass, turning propulsion into precise tools for evasion or gaining a tactical advantage. It’s a deeply satisfying puzzle of risk and resource management.
7 Game Modes – Endless Cosmic Variety
KOSMASS features seven distinct game modes, each with multiple levels offering unique twists on the core mechanics:
Basic levels – Absorb smaller objects, avoid larger ones, and grow.
Black hole – Navigate the gravitational pull of massive voids that threaten to consume everything.
White hole – Repelling forces push you away from dangerous zones. Use momentum to stay in control.
Antimatter – Some objects will annihilate you on contact.
Aliens – Unpredictable moving entities change the flow of the ecosystem around you.
Static – Fixed obstacles create mazes and barriers that demand precise navigation.
Pulsar – A dangerous rotating star emits deadly jets of energy. Avoid the jets at all costs, or learn to use them strategically to clear a path or gain an advantage.
Evolve from a mere speck to a dominant force!
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10
- Processor: Intel i5-4590 equivalent or greater
- Memory: 8 GB RAM
- Graphics: NVIDIA GTX 970 / AMD Radeon R9 290 or greater
- Storage: 500 MB available space
- VR Support: OpenXR, requires motion controllers. Note: Vive Wand controllers are not currently supported in the demo. Full support planned in a future update.
- Additional Notes: Can be played seated.
Recommended
- OS: Windows 10
- Processor: Intel i5-4590 equivalent or greater
- Memory: 8 GB RAM
- Graphics: NVIDIA GTX 970 / AMD Radeon R9 290 or greater
- Storage: 500 MB available space
- VR Support: OpenXR, requires motion controllers. Note: Vive Wand controllers are not currently supported in the demo. Full support planned in a future update.
- Additional Notes: Can be played seated.
Supported Languages
Latest news
Patch NotesOfficial
Patch v0.7.5 - New controls
This version adds experimental control via attraction to the right controller, instead of repulsion. The initial scale of the scene has also been changed, and you can now adjust it using the slider on the left controller.Read full article on Community Announcements (narizumas)Patch NotesOfficial
Patch 0.7.3
Hello everyone!This patch is all about making the game clearer, more welcoming, and more accessible — especially for new players. I’ve been listening to feedback, and I want everyone to be able to jump in, understand what’s going on, and have fun without frustration.Here’s what changed:New & ImprovedAdded a brand new tutorial – clearer explanations, better pacing, and less text overload.Added in‑game tips that appear naturally as you play.Reworked the start screen – simpler layout, clearer options, and a friendlier first impression.DifficultyLowered difficulty across all levels to reduce frustration while keeping the core challenge fun.This applies to existing levels too — no need to restart your save.GeneralDozens of small clarity improvements – better wording, clearer UI hints, and more logical progression.Ongoing work to make the game more accessible for players of all skill levels.I want the game to be something anyone can pick up and enjoy, not just hardcore players. If something feels confusing or unfair, that’s on me to fix — and this is a big step in that direction.As always, thank you for playing and for your patience. More improvements are on the way.Read full article on Community Announcements (narizumas)






