Toge Productions has announced that its upcoming isometric co-op survival horror title, Whisper Mountain Outbreak, will enter Early Access on PC via Steam on August 11 at 10:00 a.m. ET / 7:00 a.m. PT. An updated playable demo is now available for horror fans looking to get an early taste of the nightmare.

Set in the shadow of Mount Bisik, Whisper Mountain Outbreak drops players into a cursed, fog-choked mountain town where supernatural horrors have been unleashed. As agents of a covert government bureau, players must survive waves of grotesque monsters, solve intricate puzzles, and uncover the mystery behind the evil spreading through the region.
Designed for solo or up-to-four-player co-op, the game features tense, claustrophobic environments rendered in retro-inspired 2.5D visuals. Tight corridors, limited visibility, and unsettling whispers build a constant sense of dread. Survival hinges on teamwork, smart resource use, and how well players can coordinate using the game’s proximity voice chat.
With randomized class selection, RPG-style skill upgrades, crafting, and replayable missions, each run into the heart of the outbreak offers a different challenge. Whether players choose to stick together or split up to cover more ground, they’ll need sharp instincts—and sharper blades—to make it out alive.
Whisper Mountain Outbreak will continue to evolve throughout its Early Access phase, with more content, updates, and surprises planned post-launch.