Dungeon of the Endless

In Dungeon of the Endless, the player takes on the role of the survivors of a prison spaceship whose escape pod has crashed on the surface of an alien planet. In order to escape, they must carry an energy crystal through several floors, each of which is filled with a number of dangerous creatures. To help them do this, the player can let the survivors explore the randomly generated levels to collect resources to power various rooms and build turrets to fend off the enemies as they carry the crystal from its starting point to the elevator to the next floor.