Rotten Keep
Trapped in a medieval castle while investigating a deadly plague, Maestro Severino must survive the unholy horrors stalking its halls. Hide, solve sinister puzzles, and rescue the count’s surviving daughter before the nightmare claims you both in this survival stalker horror game.
- Release date
- December 3, 2026
- Platforms
- Windows
- Developer
- Gergo V
- Publisher
- Gergo V

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About Rotten Keep
Castel Valmora stands isolated high in the fog-drenched Italian Alps. When rumors reach the lowlands of a strange, unnatural affliction seizing Signore Corrado del Valmora, Maestro Severino of Brescia (a seasoned physician who survived the nightmare of the Black Death) is summoned to investigate. Upon your arrival, the great keep appears completely undisturbed. The hearths burn bright, the guards stand watch, and Signore Corrado’s daughter, Donna Caterina, welcomes you into the pristine, stone halls. Everything seems normal.
Until the heavy iron gates slam shut behind you... The illness rotting the mind of the lord is no ordinary pestilence. As night falls over the mountains, an ancient, demonic presence takes root within the fortress, twisting its occupants into nightmare horrors. Trapped inside a living tomb with a dynamic stalker hunting you through the dark, your mission shifts from medical investigation to pure survival: find Donna Caterina, uncover the keep's unspeakable secret, and escape alive.KEY FEATURESRelentless Stalker Horror: Outsmart an active, unpredictable demon hunting you through narrow stone corridors.
Your only defense is speed, stealth, and knowing when to hide. The False Sanctuary: Explore an expansive 14th-century mountain castle that transitions from a grand, peaceful noble keep into a claustrophobic, pitch-black labyrinth of horror. Escort & Survival: Locate Donna Caterina and navigate the castle’s deadly traps, secret passages, and locked sectors together to find a route out.…
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