A four-player co-op extraction game where a Lovecraftian island warps your perception while you haul treasure back to the ship.

The Mound: Omen of Cthulhu drops a squad of treasure hunters onto a cursed jungle island, then spends the rest of the run making them doubt everything they see. It’s a co-op extraction game built around a simple promise and a nasty twist. Grab the loot the captain wants, drag it back to your galleon, and try to leave before the island stops playing fair.

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https://store.steampowered.com/app/2569760/The_Mound_Omen_of_Cthulhu/