Choose INMOST
Choose INMOST if you want an Adventure experience. On Steam, it's Steam Deck Verified, so handheld play works out of the box. 1,683 Steam reviews back the pick.
INMOST vs Nightmare Inside
INMOST and Nightmare Inside both land in 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 are Indie games on Steam. INMOST (2020) is 2 years older than Nightmare Inside (2022). Nightmare Inside is currently ~73% cheaper on Steam than INMOST (3.99 USD vs. 14.99 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 Nightmare Inside
Choose Nightmare Inside if you want a Casual experience. On Steam, it's currently about 73% cheaper on the Steam Store. Nightmare Inside launched in 2022.
Both INMOST and Nightmare Inside sit in Indie 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
 INMOST |  Nightmare Inside | |
|---|---|---|
| Released | 2020 | 2022 |
| Genres | Indie, Adventure | Indie, Casual |
| Platforms | Windows, macOS | Windows |
| Steam Deck | Deck Verified | Unrated |
| Price | 14.99 USD | 3.99 USD |
| Steam reviews | 86.7% positive (1,683 reviews) | 1 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Hidden Layer Games | Benelux |
Side by side
- Both are Indie games on Steam.
- INMOST (2020) is 2 years older than Nightmare Inside (2022).
- Nightmare Inside is currently ~73% cheaper on Steam than INMOST (3.99 USD vs. 14.99 USD).
- INMOST is Deck Verified on Steam Deck; Nightmare Inside has no Deck rating yet.
INMOST vs Nightmare Inside — FAQ
- Should I play INMOST or Nightmare Inside first?
- If you want chronology, INMOST (2020) came out before Nightmare Inside (2022). 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 INMOST and Nightmare Inside similar?
- They overlap on 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.
- Does INMOST run on Steam Deck?
- Yes — INMOST is rated Deck Verified by Valve. Nightmare Inside doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.