Choose Black Light Kills
Choose Black Light Kills if you want a Simulation experience. Black Light Kills launched in 2025.
Black Light Kills vs Diagnosis: Room 101
Black Light Kills and Diagnosis: Room 101 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. Black Light Kills (2025) is 1 year older than Diagnosis: Room 101 (2026). Diagnosis: Room 101 is currently ~38% cheaper on Steam than Black Light Kills (2.49 USD vs. 3.99 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 Diagnosis: Room 101
Choose Diagnosis: Room 101 if you want a Casual experience. On Steam, it's currently about 38% cheaper on the Steam Store. Diagnosis: Room 101 launched in 2026.
Both Black Light Kills and Diagnosis: Room 101 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
 Black Light Kills |  Diagnosis: Room 101 | |
|---|---|---|
| Released | 2025 | 2026 |
| Genres | Action, Indie, Adventure, Simulation | Action, Indie, Adventure, Casual |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 3.99 USD | 2.49 USD |
| Steam reviews | 69.2% positive (26 reviews) | 1 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Fatih Atacan PRODUCTIONS | Parawind Games |
Side by side
- Both share Action, Indie, Adventure on Steam.
- Black Light Kills (2025) is 1 year older than Diagnosis: Room 101 (2026).
- Diagnosis: Room 101 is currently ~38% cheaper on Steam than Black Light Kills (2.49 USD vs. 3.99 USD).
Black Light Kills vs Diagnosis: Room 101 — FAQ
- Should I play Black Light Kills or Diagnosis: Room 101 first?
- If you want chronology, Black Light Kills (2025) came out before Diagnosis: Room 101 (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 Black Light Kills and Diagnosis: Room 101 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.