The Mound: Omen of Cthulhu is a spectacular co-op horror game that can fool players using all manner of cunning tricks. It makes for a great game to enjoy with a dedicated group or with strangers, although the difficulty of the game gets in the way occasionally. Even with many good aspects, it still seems to reach a point where progressing feels frustratingly difficult. The game doesn't always give you the best tools for the job, and, with limited meta-progression, players are left with knowledge as their only weapon. Making it to The Mound could take as little as five hours or as many as forty, and that makes the title far more interesting than its predecessors, but also significantly more frustrating to play.