Cookies on Acheev

We use cookies and similar technologies for the things below. You can accept all, reject everything except what's essential, or pick what you're OK with.

Improvement
Anonymous usage measurement so we can fix bugs and prioritise work.

Read our cookies policy and the privacy policy. California residents: Do Not Sell or Share My Personal Information.

Loading…
logo
Sign in
Whisper Mountain Outbreak cover

Whisper Mountain Outbreak

Achievement guide · roadmap · tracker

An isometric co-op PvE multiplayer survival horror game. It's 1998, and an ancient curse has been unleashed, trapping everyone on Mt. Bisik. When a mysterious fog appeared, people started hearing whispers and seeing monsters. Fight, explore, solve puzzles, and figure out a way to escape... together!

Tactical Adventure Indie Action Horror Survival
2025 0 achievements
0 achievements

No achievements match these filters.

Related games

Coffee Talk
Coffee Talk
25 achievements
Coffee Talk Episode 2: Hibiscus and Butterfly
Coffee Talk Episode 2: Hibiscus and Butterfly
53 achievements
Coffee Talk Episode 2: Hibiscus & Butterfly
Coffee Talk Episode 2: Hibiscus & Butterfly
53 achievements
Infectonator : Survivors
Infectonator : Survivors
19 achievements
Kriegsfront Battlescaper
Kriegsfront Battlescaper
Project Homecoming Haven
Project Homecoming Haven
Infectonator 3: Apocalypse
Infectonator 3: Apocalypse
41 achievements
Rising Hell
Rising Hell
34 achievements
Necronator: Dead Wrong
Necronator: Dead Wrong
45 achievements
A Space for the Unbound
A Space for the Unbound
25 achievements
When The Past Was Around
When The Past Was Around
20 achievements
A Raven Monologue
A Raven Monologue
Steam

Track your progress

Sign in with Steam or Xbox to mark off unlocks, filter what's left and showcase your 100%s.

  • Live unlock status per achievement
  • Hide-unlocked filter
  • 100% showcase on your profile
Sign in
Help improve this guide
Sign in to request a guide