- Steam pricePrice
- $6.39$7.99-20%
- Release
- August 11, 2025Early access
- Session GoalsGoals
- Modes
- Platforms
How co-op works
Online co-op for up to four players where teams explore Mount Bisik, solve interconnected escape-room puzzles, and survive against supernatural threats by sharing clues and coordinating actions under pressure.
About this game
Whisper Mountain Outbreak traps players on Mount Bisik in 1998, where an ancient curse has sealed everyone inside. This survival horror experience blends escape-room puzzle design with cooperative tension, challenging solo adventurers or groups of up to four to uncover what happened and find a way out before the mountain claims them.
Read moreShow less
Puzzles demand attention to detail and constant communication. Clues scatter across multiple rooms and vantage points, forcing teammates to relay information, cross-reference discoveries, and think several steps ahead. Meanwhile, supernatural dangers patrol the mountain, turning every exploration phase into a test of nerves and timing.
The game is in Early Access, with ongoing development shaping the full scope of environments and puzzle sequences. Session structure rewards thorough investigation and trial-and-error teamwork, making each attempt a chance to piece together more of the mystery and improve coordination for the next run.
Similar games
See more similar gamesAppears in these lists
Survive supernatural threats, escape twisted experiments, and face down the unknown with friends in horror games built for teamwork and tension.
Fight the undead with friends in co-op zombie games that mix wave survival, frantic gunplay, and teamwork under pressure.
Puzzle games built for teamwork, where every solution demands coordination, communication, and creative thinking between players.
Frequently Asked Questions
Can I play Whisper Mountain Outbreak solo, or do I need friends?
You can play both solo and with up to four players in online co-op. The puzzles and horror elements work in either mode, though many escape-room style challenges are designed with team communication in mind-expect to coordinate more when playing with others.
How important is communication for solving the puzzles?
Communication is essential. Clues are often scattered across different rooms and locations, so teammates need to share what they find, relay information, and collaborate on solutions. You'll rarely have all the pieces yourself, making voice chat or good coordination key to progressing.
Is Whisper Mountain Outbreak finished, or is it still being developed?
The game is currently in Early Access, so the full scope of environments and puzzle sequences is still being shaped. You can play now and experience the core survival horror and escape-room mechanics, but expect ongoing updates as development continues.
What kind of horror can I expect-jump scares or something else?
The horror leans on atmosphere and tension rather than pure jump scares. Supernatural dangers patrol the cursed mountain while you explore and solve puzzles, turning investigation into a careful balance of nerves and timing as you avoid or survive encounters.