Full game metadata
| Field | Value |
|---|---|
| Steam app type | game |
| Steam App ID | 4785390 |
| Live current players | 0 |
| SteamPulse tracked peak | 0 |
| Live count (today's peak floor) | 0 |
| Price | $7.99 |
| Free to play | No |
| Discount | 0% |
| Original price USD | $7.99 |
| Current price USD | $7.99 |
| Release date | Aug 4, 2026 |
| Developer | Mr.Boloney |
| Publisher | Mr.Boloney |
| Owners estimated | Not available |
| SteamSpy owner estimate minimum | Not available |
| SteamSpy owner estimate maximum | Not available |
| Review type | 2 user reviews |
| Positive review percent | 100% |
| Positive reviews | 2 |
| Negative reviews | 0 |
| Total reviews | 2 |
| Steam recommendations | Not available |
| Achievements | 3 |
| Average playtime forever | Not available |
| Windows support | Yes |
| macOS support | No |
| Linux support | No |
| Parent game | Not available |
| Store URL | https://store.steampowered.com/app/4785390/ |
Short description
A psychological horror sim where you play a low-level researcher, who has to banish demonic entities back to where they came from. While having to keep the entitles in your peripheral vision, you must use the Rune Operation Manual to input the right runes, and send them back.
About this game
The Missing Rune is a first-person psychological horror puzzle game. You play a low-level researcher at the O.B.J. Foundation, stationed at a control panel outside a containment cell. Your job is to banish demonic entities using rune incantations — without ever looking directly at one. THE RULE Look directly at an entity and it tunnels in through your eyes. Look away and it slips in behind you. Hold it at the very edge of your vision, and keep it there. THE SHIFT Six shifts, six cycles each. Every cycle runs in two phases. MANIFESTATION. The shield opens and the entity appears. Hold your peripheral gaze for thirty seconds while it tries to anchor itself into reality. As it does, things happen in the cell, the lights change color, sounds come through the microphone, your vision corrupts, and eventually the entity starts speaking to you. Memorize all of it. The glass absorbs one mistake, after it breaks, the next one is fatal. QUANTUM. The entity vanishes and it's safe to look down. Open the Rune Operation Manual, work out which entity you're holding, and apply a modifier for everything you witnessed, in the order the manual gives them. Then enter your three-rune answer on the console. You have two minutes. Whatever you enter becomes the starting sequence for the next cycle, so a mistake follows you. Some rune combinations are fatal on input, and the manual buries that warning on the back page. ESCALATION Shift one is guided. After that the Foundation stops holding your hand. Entities strong enough to talk will tell you things about your handler. Perforations open in your vision that can only be closed by staring straight into them which means taking your eyes off the entity. The facility loses power. And on the final shift, someone replaces your manual with one you've never seen. FEATURES Six-shift story campaign, fully voiced over the intercom A real in-universe manual you open and read answers are never on screen Three entity types, four categories of anomaly, and a final encounter that rewrites the rules No weapons, no combat. Observation, memory, and deduction only. Steam achievements Photosensitivity warning: contains flashing lights, strobing e…
Supported languages
English * * languages with full audio support