Choose COS-MOS
Choose COS-MOS if you want an Adventure and Massively Multiplayer game with Custom Volume Controls and Stereo Sound.
COS-MOS vs F.A.G.E.N.
COS-MOS and F.A.G.E.N. both land in Action, Casual on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both share Action, Casual on Steam. Both support cooperative play. No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Which should you pick?
Choose F.A.G.E.N.
Choose F.A.G.E.N. if you want an Indie and Early Access game with Save Anytime. F.A.G.E.N. launched in 2026.
Both COS-MOS and F.A.G.E.N. sit in Action and Casual on Steam and both list Multi-player, Online Co-op, and Playable without Timed Input, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
Side-by-side comparison
 COS-MOS |  F.A.G.E.N. | |
|---|---|---|
| Released | — | 2026 |
| Genres | Action, Adventure, Massively Multiplayer, Casual | Action, Indie, Casual, Early Access |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | Price unknown | Price unknown |
| Steam reviews | — | — |
| Multiplayer | Multi-player, Online Co-op, Co-op | Multi-player, Online Co-op, Co-op |
| Developers | Peremennie | Anka Games, Aytunç Kerem Altuntaş, Çağan Ege Kemerli, Volkan Ülger |
Side by side
- Both share Action, Casual on Steam.
- Both support cooperative play.
COS-MOS vs F.A.G.E.N. — FAQ
- Are COS-MOS and F.A.G.E.N. similar?
- They overlap on Action, Casual on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
- Do both COS-MOS and F.A.G.E.N. have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: COS-MOS ships Online Co-op, Co-op; F.A.G.E.N. ships Online Co-op, Co-op.