Choose Rebel Galaxy
Choose Rebel Galaxy if you want an Action and Indie experience. 5,259 Steam reviews back the pick.
Rebel Galaxy vs Unknown Horizon
Rebel Galaxy and Unknown Horizon both land in Adventure, Simulation, RPG 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 Adventure, Simulation, RPG on Steam. Rebel Galaxy is Deck Playable on Steam Deck; Unknown Horizon has no Deck rating yet. 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 Unknown Horizon
Choose Unknown Horizon if you want an Early Access game with Custom Volume Controls, Playable without Timed Input, and Keyboard Only Option.
Both Rebel Galaxy and Unknown Horizon sit in Adventure, Simulation, and RPG 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
 Rebel Galaxy |  Unknown Horizon | |
|---|---|---|
| Released | 2015 | — |
| Genres | Action, Indie, Adventure, Simulation, RPG | Adventure, Simulation, RPG, Early Access |
| Platforms | Windows, macOS | Windows, Linux |
| Steam Deck | Deck Playable | Unrated |
| Price | 19.99 USD | Price unknown |
| Steam reviews | 86.4% positive (5,259 reviews) | — |
| Multiplayer | Single-player only | Single-player only |
| Developers | Double Damage Games | Ellitopia Gaming |
Side by side
- Both share Adventure, Simulation, RPG on Steam.
- Rebel Galaxy is Deck Playable on Steam Deck; Unknown Horizon has no Deck rating yet.
Rebel Galaxy vs Unknown Horizon — FAQ
- Are Rebel Galaxy and Unknown Horizon similar?
- They overlap on Adventure, Simulation, RPG 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 Rebel Galaxy run on Steam Deck?
- Yes — Rebel Galaxy is rated Deck Playable by Valve. Unknown Horizon doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.