Choose Lamentum
Choose Lamentum if you want an Adventure experience. On Steam, it's Steam Deck Verified, so handheld play works out of the box. Lamentum launched in 2021.
Lamentum vs The Sleep Experiment
Lamentum and The Sleep Experiment both land in Action, 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 share Action, Indie on Steam. Lamentum (2021) is 2 years older than The Sleep Experiment (2023). Lamentum scores higher on Steam reviews (90.6% positive) than The Sleep Experiment (18.2% 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 The Sleep Experiment
Choose The Sleep Experiment if you want a Simulation experience. On Steam, it's currently about 25% cheaper on the Steam Store. The Sleep Experiment launched in 2023.
Both Lamentum and The Sleep Experiment sit in Action and 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
 Lamentum |  The Sleep Experiment | |
|---|---|---|
| Released | 2021 | 2023 |
| Genres | Action, Indie, Adventure | Action, Indie, Simulation |
| Platforms | Windows, Linux | Windows, macOS |
| Steam Deck | Deck Verified | Unrated |
| Price | 15.99 USD | 11.99 USD |
| Steam reviews | 90.6% positive (212 reviews) | 18.2% positive (11 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Obscure Tales | ClawsDev |
Side by side
- Both share Action, Indie on Steam.
- Lamentum (2021) is 2 years older than The Sleep Experiment (2023).
- Lamentum scores higher on Steam reviews (90.6% positive) than The Sleep Experiment (18.2% positive).
- The Sleep Experiment is currently ~25% cheaper on Steam than Lamentum (11.99 USD vs. 15.99 USD).
- Lamentum is Deck Verified on Steam Deck; The Sleep Experiment has no Deck rating yet.
Lamentum vs The Sleep Experiment — FAQ
- Should I play Lamentum or The Sleep Experiment first?
- If you want chronology, Lamentum (2021) came out before The Sleep Experiment (2023). 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 Lamentum and The Sleep Experiment similar?
- They overlap on Action, 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 Lamentum run on Steam Deck?
- Yes — Lamentum is rated Deck Verified by Valve. The Sleep Experiment doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.