Deathtrap Dungeon introduces players to a standalone, action-adventure dungeon crawler where survival within a baron's notorious labyrinth is paramount. Players choose between Red Lotus, an assassin, or Chaindog, a warrior, to battle through subterranean pits and passageways. The core loop involves navigating a monster-filled dungeon, engaging in brutal combat, and overcoming deadly traps with dark magic to reach the heart of the dungeon and confront the dragon Melkor.
The game challenges players across 38 distinct levels, populating them with 53 different AI-controlled monsters. Adventurers discover and utilize a varied arsenal of 32 weapons, spells, and charms to aid in their progress. Success hinges on mastering these tools and navigating the dungeon's dangers, with failure resulting in death.