Sub Terra

Sub Terra is a cooperative survival horror board game. You and up to five friends are cave explorers who have become trapped deep underground. You must quickly explore a tile-based cave system to find the way out before your flashlights die and you're lost in the darkness forever.

You'll need to work together to overcome deadly subterranean hazards - stick together for safety, or split up to cover more ground. One wrong step could knock you unconscious and your friends will need to stage a rescue. Light and hope are scarce. And worst of all, you don't think you're alone down here...

-- About Sub Terra: Investigation --
This expansion is set after the events of Sub Terra. Not all of you made it out alive. Now, with the help of a mysterious corporation, you’re returning to the cave to find your fallen friends.
Investigation adds 15 new item cards that grant your cavers powerful abilities. Recover them from the cave floor, or choose the ruthless Agent who starts fully equipped. The darkness hides many things. Be prepared.

-- About Sub Terra: Extraction --
This expansion is set after the events of Sub Terra. You’ve returned to the cave, and you’re not alone. A new threat has emerged from the shadows - faster, deadlier, and hunting you down…
Extraction adds more horrors to the cave with the new fast-moving Leaper hazard card. Fight them off with the Mercenary, a flexible blend of cautious explorer and powerful defender. Above all else, you must carry proof of the infestation back to the surface, or die trying...

-- About Sub Terra: Annihilation --
This expansion is set after the events of Sub Terra. Instead of trying to escape the cave, you’re going back in to destroy it.
Annihilation introduces a totally new way to play the game. Push deeper into the cave to reach points of structural weakness, plant powerful bombs, then get back to the exit before they detonate. The Exterminator can stop horrors from spawning and is immune to gas, helping keep your escape routes open while you complete your mission. This isn't going to be easy.