Choose INSIDE
Choose INSIDE if you want an Action game with Color Alternatives, Stereo Sound, and Playable without Timed Input. 23,692 Steam reviews back the pick.
INSIDE vs Nullstar: Solus
INSIDE and Nullstar: Solus both land in 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 Indie, Adventure on Steam. INSIDE (2016) is 10 years older than Nullstar: Solus (2026). Nullstar: Solus scores higher on Steam reviews (98.4% positive) than INSIDE (96.3% 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 Nullstar: Solus
Choose Nullstar: Solus if it's currently about 60% cheaper on the Steam Store. Nullstar: Solus launched in 2026.
Both INSIDE and Nullstar: Solus sit in Indie and Adventure 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
 INSIDE |  Nullstar: Solus | |
|---|---|---|
| Released | 2016 | 2026 |
| Genres | Action, Indie, Adventure | Indie, Adventure |
| Platforms | Windows | Windows |
| Steam Deck | Deck Verified | Deck Verified |
| Price | 24.99 USD | 9.99 USD |
| Steam reviews | 96.3% positive (23,692 reviews) | 98.4% positive (63 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Playdead | Smash Attack Aus |
Side by side
- Both share Indie, Adventure on Steam.
- INSIDE (2016) is 10 years older than Nullstar: Solus (2026).
- Nullstar: Solus scores higher on Steam reviews (98.4% positive) than INSIDE (96.3% positive).
- Nullstar: Solus is currently ~60% cheaper on Steam than INSIDE (9.99 USD vs. 24.99 USD).
- Both are Deck Verified.
INSIDE vs Nullstar: Solus — FAQ
- Should I play INSIDE or Nullstar: Solus first?
- If you want chronology, INSIDE (2016) came out before Nullstar: Solus (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 INSIDE and Nullstar: Solus similar?
- They overlap on 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 INSIDE and Nullstar: Solus both run on Steam Deck?
- Yes — both are Steam Deck Verified, meaning Valve confirms they run with full controller support, legible text, and default settings out of the box.