Choose Space
Choose Space if you want a Simulation, Massively Multiplayer, and RPG game with HDR available. On Steam, it's free to play, so the barrier to trying it is zero.
Space vs GreenMars: Expedition 744
Space and GreenMars: Expedition 744 both land in Action, Indie, Adventure 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, Indie, Adventure on Steam. Space is free; GreenMars: Expedition 744 is paid (Price unknown). 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 GreenMars: Expedition 744
Choose GreenMars: Expedition 744 if you want an Early Access game with Camera Comfort, Custom Volume Controls, and Stereo Sound.
Both Space and GreenMars: Expedition 744 sit in Action, Indie, and Adventure on Steam and both list Multi-player, Online Co-op, and LAN Co-op, 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
 Space |  GreenMars: Expedition 744 | |
|---|---|---|
| Released | — | — |
| Genres | Action, Indie, Adventure, Simulation, Massively Multiplayer, RPG, Free To Play, Casual | Action, Indie, Adventure, Early Access |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | Free to play | Price unknown |
| Steam reviews | — | — |
| Multiplayer | Multi-player, Online Co-op, LAN Co-op | Multi-player, Online Co-op, LAN Co-op |
| Developers | Neila Games | 744 Interactive |
Side by side
- Both share Action, Indie, Adventure on Steam.
- Space is free; GreenMars: Expedition 744 is paid (Price unknown).
- Both support cooperative play.
Space vs GreenMars: Expedition 744 — FAQ
- Are Space and GreenMars: Expedition 744 similar?
- They overlap on Action, Indie, Adventure 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 Space and GreenMars: Expedition 744 have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Space ships Online Co-op, LAN Co-op; GreenMars: Expedition 744 ships Online Co-op, LAN Co-op.
- Is Space free?
- Yes — Space is a free-to-play Steam title. GreenMars: Expedition 744 is paid (Price unknown).