The Lava Trap is a unique trap first made available to the player in Nevergrim. It is unique in that it deals permanent damage to your dungeon. When activated by an enemy creature, the tile containing the trap is destroyed and replaced with a tile of Lava, damaging any creatures touching it and causing them to move to the nearest safe tile, often stopping their advance or separating them from other creatures. One can then cover the tile of Lava with a Bridge like always. The Lava Trap requires your Workshop to be made up of at least seventeen squares before production can begin.