Full game metadata
| Field | Value |
|---|---|
| Steam app type | game |
| Steam App ID | 1798570 |
| Live current players | 0 |
| SteamPulse tracked peak | 4 |
| Live count (today's peak floor) | 0 |
| Price | $5.99 |
| Free to play | No |
| Discount | 0% |
| Original price USD | $5.99 |
| Current price USD | $5.99 |
| Release date | Oct 18, 2025 |
| Developer | CaRuFy, Nagodo |
| Publisher | Mental Studios |
| Owners estimated | Not available |
| SteamSpy owner estimate minimum | Not available |
| SteamSpy owner estimate maximum | Not available |
| Review type | Mixed |
| Positive review percent | 64% |
| Positive reviews | 9 |
| Negative reviews | 5 |
| Total reviews | 14 |
| Steam recommendations | Not available |
| Achievements | 6 |
| Average playtime forever | 145 minutes |
| Windows support | Yes |
| macOS support | No |
| Linux support | No |
| Parent game | Not available |
| Store URL | https://store.steampowered.com/app/1798570/ |
Short description
Inspired by "The Russian Sleep Experiment," this co-op multiplayer horror game challenges players to collect crucial evidence from past experiments. Work together to control the gas, evade the roaming monster, and uncover the terrifying truth.
About this game
Sleepless is a multiplayer horror game inspired by the myth "The Russian Sleep Experiment." The game is set in a bunker in present-day Russia. The players' goal is to collect all the evidence items from the bunker that can provide important information about the past experiments. However, this is not an easy task, as the abandoned bunker is difficult to navigate, lack of electricity, and the constant feeling of being watched by the blind experiment victim. Distract the monster: Find objects in the bunker and use them to create sounds, diverting the attention of the blind monster. Collect Evidence: Gather randomly placed evidence throughout the bunker to win the game. Be cautious, as finding evidence will gradually increase the monster's aggression. Control the Gas: Manipulate the gas switches, which are operational only when the generator is powered, to safely navigate through different rooms.
Supported languages
English, French, German, Spanish - Spain, Danish, Russian