Choose Gravity in Space
Choose Gravity in Space if you want an Action and Early Access game with Multi-player, Online PvP, and PvP. Gravity in Space launched in 2021.
Gravity in Space vs Orbital Physics Simulator
Gravity in Space and Orbital Physics Simulator both land in Indie, Simulation 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 Indie, Simulation on Steam. Gravity in Space (2021) is 5 years older than Orbital Physics Simulator (2026). Orbital Physics Simulator is free; Gravity in Space is paid (13.99 USD). 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 Orbital Physics Simulator
Choose Orbital Physics Simulator if you want a Free To Play game with Playable without Timed Input. On Steam, it's free to play, so the barrier to trying it is zero. Orbital Physics Simulator launched in 2026.
Both Gravity in Space and Orbital Physics Simulator sit in Indie and Simulation on Steam, 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
 Gravity in Space |  Orbital Physics Simulator | |
|---|---|---|
| Released | 2021 | 2026 |
| Genres | Action, Indie, Simulation, Early Access | Indie, Simulation, Free To Play |
| Platforms | Windows, Linux | Windows, Linux |
| Steam Deck | Unrated | Unrated |
| Price | 13.99 USD | Free to play |
| Steam reviews | 4 reviews | 86.7% positive (15 reviews) |
| Multiplayer | Multi-player | Single-player only |
| Developers | Cross and Dot Products | Nathan Schmitt |
Side by side
- Both share Indie, Simulation on Steam.
- Gravity in Space (2021) is 5 years older than Orbital Physics Simulator (2026).
- Orbital Physics Simulator is free; Gravity in Space is paid (13.99 USD).
Gravity in Space vs Orbital Physics Simulator — FAQ
- Should I play Gravity in Space or Orbital Physics Simulator first?
- If you want chronology, Gravity in Space (2021) came out before Orbital Physics Simulator (2026). 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 Gravity in Space and Orbital Physics Simulator similar?
- They overlap on Indie, Simulation 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.
- Does Orbital Physics Simulator have multiplayer like Gravity in Space?
- No. Gravity in Space supports multiplayer on Steam (Multi-player), while Orbital Physics Simulator is listed as single-player only.
- Is Orbital Physics Simulator free?
- Yes — Orbital Physics Simulator is a free-to-play Steam title. Gravity in Space is paid (13.99 USD).