Choose Interstellar Rift
Choose Interstellar Rift if you want a Simulation experience. On Steam, it's the newer release (2020) and ships with the modern feature baseline. Interstellar Rift launched in 2020.
Interstellar Rift vs Space Impossible
Interstellar Rift and Space Impossible both land in Action, Indie 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 on Steam. Space Impossible (2016) is 4 years older than Interstellar Rift (2020). Space Impossible scores higher on Steam reviews (93.4% positive) than Interstellar Rift (65.9% positive). 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 Space Impossible
Choose Space Impossible if you want an Adventure and Early Access game with LAN PvP. On Steam, it's currently about 35% cheaper on the Steam Store. Space Impossible launched in 2016.
Both Interstellar Rift and Space Impossible sit in Action and Indie on Steam and both list Multi-player, Online PvP, and Online 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
 Interstellar Rift |  Space Impossible | |
|---|---|---|
| Released | 2020 | 2016 |
| Genres | Action, Indie, Simulation | Action, Indie, Adventure, Early Access |
| Platforms | Windows | Windows, macOS, Linux |
| Steam Deck | Deck Unsupported | Unrated |
| Price | 19.99 USD | 12.99 USD |
| Steam reviews | 65.9% positive (923 reviews) | 93.4% positive (91 reviews) |
| Multiplayer | Multi-player, Online Co-op, LAN Co-op | Multi-player, Cross-Platform Multiplayer, Online Co-op |
| Developers | Split Polygon | Happy Polygon |
Side by side
- Both share Action, Indie on Steam.
- Space Impossible (2016) is 4 years older than Interstellar Rift (2020).
- Space Impossible scores higher on Steam reviews (93.4% positive) than Interstellar Rift (65.9% positive).
- Space Impossible is currently ~35% cheaper on Steam than Interstellar Rift (12.99 USD vs. 19.99 USD).
- Both support cooperative play.
- Interstellar Rift is Deck Unsupported on Steam Deck; Space Impossible has no Deck rating yet.
Interstellar Rift vs Space Impossible — FAQ
- Should I play Interstellar Rift or Space Impossible first?
- If you want chronology, Space Impossible (2016) came out before Interstellar Rift (2020). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are Interstellar Rift and Space Impossible similar?
- They overlap on Action, Indie 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 Interstellar Rift and Space Impossible have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Interstellar Rift ships Online Co-op, LAN Co-op; Space Impossible ships Online Co-op, LAN Co-op.