Choose Solar 2
Choose Solar 2 if you want an Action and Adventure experience. On Steam, it's currently about 67% cheaper on the Steam Store. 1,141 Steam reviews back the pick.
Solar 2 vs Universe Sandbox
Solar 2 and Universe Sandbox both land in Indie, Simulation, 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 Indie, Simulation, Casual on Steam. Solar 2 (2011) is 4 years older than Universe Sandbox (2015). Universe Sandbox scores higher on Steam reviews (96.6% positive) than Solar 2 (91% 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 Universe Sandbox
Choose Universe Sandbox if you want an Early Access game with Adjustable Text Size, Custom Volume Controls, and Playable without Timed Input. On Steam, it carries the stronger Steam consensus at 96.6% positive across 18,850 reviews.
Both Solar 2 and Universe Sandbox sit in Indie, Simulation, and Casual 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
 Solar 2 |  Universe Sandbox | |
|---|---|---|
| Released | 2011 | 2015 |
| Genres | Action, Indie, Adventure, Simulation, Casual | Indie, Simulation, Casual, Early Access |
| Platforms | Windows, macOS, Linux | Windows, macOS |
| Steam Deck | Deck Verified | Deck Playable |
| Price | 9.99 USD | 29.99 USD |
| Steam reviews | 91% positive (1,141 reviews) | 96.6% positive (18,850 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Murudai | Giant Army |
Side by side
- Both share Indie, Simulation, Casual on Steam.
- Solar 2 (2011) is 4 years older than Universe Sandbox (2015).
- Universe Sandbox scores higher on Steam reviews (96.6% positive) than Solar 2 (91% positive).
- Solar 2 is currently ~67% cheaper on Steam than Universe Sandbox (9.99 USD vs. 29.99 USD).
- Steam Deck: Solar 2 is Deck Verified, Universe Sandbox is Deck Playable.
Solar 2 vs Universe Sandbox — FAQ
- Which is better, Solar 2 or Universe Sandbox?
- On Steam reviews Universe Sandbox scores higher (96.6% positive) than Solar 2 (91% positive). Both have enough reviews to trust the signal, so for players using reviews alone, Universe Sandbox is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
- Should I play Solar 2 or Universe Sandbox first?
- If you want chronology, Solar 2 (2011) came out before Universe Sandbox (2015). 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 Solar 2 and Universe Sandbox similar?
- They overlap on Indie, Simulation, 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.