Lost Cosmonaut
Offers
Trailers & screenshots
1 / 7


About Lost Cosmonaut
Lost Cosmonaut is an action platformer with roguelike elements. After surviving a crash landing, you find yourself stranded on a randomly generated planet and fight to survive against its aggressive alien inhabitants.
Explore the planet
Explore 10 massive randomly generated levels, each with different terrain and enemies. Face over 10 powerful bosses and unlock up to 8 special characters.
Soundtrack
The game features an original soundtrack.
Frequently asked questions
The best price for Lost Cosmonaut is $6.99 at Steam. It is the only shop with an offer that activates in your country.
The minimum requirements for Lost Cosmonaut are: Windows Vista, 1 GB RAM, 40 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Lost Cosmonaut is a single-player game.
Yes. Lost Cosmonaut is the full base game. You need nothing else to play it.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.











