Skip to content
0
Whisper Mountain Outbreak cover art

Game · Toge Productions

Whisper Mountain Outbreak

SteamEurope and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.
  • Co-op

Escape room meets co-op survival horror. The year is 1998, and an ancient curse has been unleashed, trapping everyone on Mount Bisik.

Before you buy

Redeem on
Steam clientPC: Windows. Needs a free Steam account.
Activates in
Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.Activates on accounts registered in the EU, EEA, Switzerland and the United Kingdom.Will not activate on accounts registered in North America, Asia, Latin America or Oceania.
You get
A digital activation keyStandard edition. No disc, no box.
Delivery
To your account and by emailDelivered to your account and by email once it is ready. Some orders get a short manual check first.

Trailers and screenshots

01 / 11 Trailer

Whisper Mountain Outbreak

Trailer 1 of 3

About this game

Whisper Mountain Outbreak is an isometric co-op PvE multiplayer survival horror game where you and your friends must work together to escape the cursed fog-covered Mt. Bisik.

Explore abandoned buildings, fight monsters, scavenge resources, craft items, solve puzzles, and figure out a way to escape the whispering madness.

STORY

It’s 1998; a mining operation on Mt. Bisik inadvertently unleashed an ancient horror when they disturbed a ruin buried deep inside the mountain.

People started hearing whispers and seeing monsters when a mysterious fog suddenly appeared and covered the area surrounding the mountain. Now, you and your friends are trapped in the cursed Mt. Bisik.

FEATURES

  • Survive and fight the horde
    Monsters will come in waves. Fight them off using a variety of melee and ranged weapons, use herbs to recover your health, and protect each other’s backs!

  • Co-op multiplayer madness
    Teamwork is key in this race to safety. Communicate using in-game proximity voice chat, save downed teammates, and share the scarce resources you find.

  • Explore, solve puzzles, and find a way to escape... together!
    Work together to solve puzzles, find keys, unlock doors, and figure out a way to escape the curse.

  • Learn new skills and craft items
    Turn your hard-earned experience and resources to tackle harder missions by utilizing your newly learned skills and crafted items.

  • 2.5D retro graphics with a claustrophobic, dark, and creepy atmosphere
    A lingering fog, tight rooms, limited visibility, and eerie whispers, presented in 2D pixel characters with 3D low-poly environments. Offering both nostalgic and freshly terrifying experiences.

  • Choose your specialization
    At the start of each run, choose from the available classes (out of six total). Each class has unique perks and skills, allowing for different playstyles and strategies.

Description, images and details are taken from this product's Steam page.

Details

Developer
Toge Productions
Publisher
Toge Productions
Released
11 Aug, 2025
Genres
Action, Horror, Survival, Multiplayer/MMO, Indie
Runs on
Windows
Activates on
Steam client, Europe and UK
Interface
English, Indonesian, Simplified Chinese, Traditional Chinese, Japanese, French, German, Spanish - Spain, Korean, Polish, Portuguese - Brazil, Russian, Thai, Turkish
  • Single-player
  • Multi-player
  • Co-op
  • Online Co-op
  • Gamepad Recommended
  • DualShock Controller Support
  • DualShock Controller Support
  • DualSense Controller Support
  • DualSense Controller Support
  • Partial Controller Support
  • Family Sharing

Includes intense pixel-art violence and blood.

System requirements

Windows

  • Requires a 64-bit processor and operating system
Whisper Mountain Outbreak system requirements on Windows
ComponentMinimumRecommended
OSWindows 10 or laterWindows 10 or later
Processor2.4 GHz or faster processor2.4 GHz or faster processor
Memory4 GB RAM8 GB RAM
Graphics1 GB VRAM, support Pixel Shader version 2.x or above2 GB VRAM, support Pixel Shader version 2.x or above
DirectXVersion 10Version 10
NetworkBroadband Internet connectionBroadband Internet connection
Storage1 GB available space1 GB available space

Activating it on Steam client

  1. Open the Steam client and sign in.
  2. Choose Games in the top menu, then Activate a Product on Steam.
  3. Paste the key and confirm. It appears in your library.

The key is listed for the Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom. region. Read how regions work before you buy.

Whisper Mountain Outbreak€8.34