The Mound: Omen of Cthulhu

About The Mound: Omen of Cthulhu

The Mound: Omen of Cthulhu is a co-op survival psychological horror game developed by Chilean studio ACE Team and published by Nacon, supporting up to four players online. You form an expedition to hunt for treasure in a cursed jungle, facing Lovecraftian horrors as a distorted reality and a madness system make perception unreliable.

Set in a cursed jungle, the game lets up to four players board a large sailing ship together, sign a contract in exchange for equipment, and then explore the land. The jungle is full of Lovecraftian threats, and a chaos system distorts your perception, blurring the line between reality and hallucination. Players must find abandoned fortresses and unlock them as new starting points, pushing deeper in search of the Mound, a legendary place said to hold endless treasure. The core gameplay combines co-op survival and psychological horror. Players coordinate through spatial voice chat, distribute weapons and gear, fend off unpredictable threats, and collect treasure. The game blends roguelite, first-person adventure, and loot-and-shoot elements, with online co-op, open-world exploration, and survival horror mechanics.