Choose COSMONAUT
Choose COSMONAUT if it's free to play, so the barrier to trying it is zero. COSMONAUT launched in 2018.
COSMONAUT vs Lamentum
COSMONAUT and Lamentum both land in Action, 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 Action, Indie, Adventure on Steam. COSMONAUT (2018) is 3 years older than Lamentum (2021). Lamentum scores higher on Steam reviews (90.6% positive) than COSMONAUT (84.6% 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 Lamentum
Choose Lamentum if it's the newer release (2021) and ships with the modern feature baseline. Lamentum launched in 2021.
Both COSMONAUT and Lamentum sit in Action, 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
 COSMONAUT |  Lamentum | |
|---|---|---|
| Released | 2018 | 2021 |
| Genres | Action, Indie, Adventure | Action, Indie, Adventure |
| Platforms | Windows | Windows, Linux |
| Steam Deck | Unrated | Deck Verified |
| Price | Free to play | 15.99 USD |
| Steam reviews | 84.6% positive (26 reviews) | 90.6% positive (212 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Neon Chasm, LLC | Obscure Tales |
Side by side
- Both share Action, Indie, Adventure on Steam.
- COSMONAUT (2018) is 3 years older than Lamentum (2021).
- Lamentum scores higher on Steam reviews (90.6% positive) than COSMONAUT (84.6% positive).
- COSMONAUT is free; Lamentum is paid (15.99 USD).
- Lamentum is Deck Verified on Steam Deck; COSMONAUT has no Deck rating yet.
COSMONAUT vs Lamentum — FAQ
- Should I play COSMONAUT or Lamentum first?
- If you want chronology, COSMONAUT (2018) came out before Lamentum (2021). 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 COSMONAUT and Lamentum similar?
- They overlap on Action, 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.
- Is COSMONAUT free?
- Yes — COSMONAUT is a free-to-play Steam title. Lamentum is paid (15.99 USD).