We make co-op games.

What'Sub is out now in Early Access on Steam. Mystic Garden, a cozy witch life sim, is in development.

Games

Postmouse key art: a mouse with a mailbag on a forest path near an old mansion

Free on Steam

Postmouse

A timid little mouse sets out on their very first mail delivery, through the overgrown ruins of an abandoned mansion.

Puzzle platformer · Single-player · PC (Steam)

Developed as Critters Collective, published by The Animation Workshop

About us

We make co-op games with a lot of atmosphere. We love games you play with friends, where the best moments come from figuring things out together. What'Sub is out in Early Access on Steam, and we're deep in development on our next game, Mystic Garden.

Based in
Viborg, Denmark
Focus
Co-op and atmospheric games
Out now
What'Sub (Early Access, May 2026), Postmouse (2023)
Outsourcing
Khaos Systems

Say hello

Investment, publishing or press. We read everything.

Partners can ask us for a build or the pitch deck.

contact@khaos.systems

Join the community

Hang out with the team and other divers on the What'Sub Discord.

Join the Discord (opens in a new tab)

Need a dev team?

Khaos Systems, our outsourcing studio, helps with gameplay systems, technical animation, engine extension and more.

khaos.systems (opens in a new tab)