Overdungeon combines card combat, tower-defense elements and roguelike structure in a dungeon run. Its central task is to build a strong deck and use it to overcome enemies and ultimately clear the dungeon. The premise is playful as well as strategic: its cards include animals, buildings, spells and traps, with pets and poultry among the creatures that can join a fight.
Combat unfolds in semi-real time, so choosing and playing cards is part of an ongoing battle rather than a purely turn-by-turn exchange. The game also emphasizes keeping enough cards available to continue playing within a run. Between fights, a changing map presents events and choices, while randomly obtained relics can improve a deck or alter the order in which cards are drawn. Together, these systems make each trip through the dungeon a mix of tactical decisions and unpredictable encounters.
The store lists Overdungeon as single-player, so its player-count context is a solo experience built around individual runs, deck choices and changing encounters, not a multiplayer match. Its mixture of real-time card use, random map events and whimsical card imagery gives the strategy a deliberately unconventional tone.
