Tethys is a collaborative space dungeon crawler where you, along with your teammates, must explore the mining colony on the surface of Saturn's moon, Tethys, complete missions and defeat the Alien Queen. At each turn, you will open new rooms, face fearsome aliens, conquer new weapons, modifiers and items that will enhance your arsenal: your precious dice. Find and open the chests to receive loot and access codes that will lead you to unexplored places, until you discover the underground hangar that hides a terrible truth ... During your turn, you can perform 2 Actions, Move and Attack, as well as collect loot and open rooms. If you complete the mission objective, you win! If, on the other hand, you and all the players who participated in the mission lose all Energy, bringing the battery to 0, the Mission has failed. -description from publisher