クトゥルフダンジョン is a DDBRPG (Dungeon Dice Board RPG) that combines the world of Cthulhu Mythos with fantasy elements. In this game, players are tasked with defeating the creatures that ravage the land. Set in a fantasy world where mythological beings from the Cthulhu Mythos attack adventurers, players must navigate through dungeons and face dangerous challenges.

The game offers a unique experience by blending elements of fantasy and Lovecraftian horror. Players can explore dungeons by rolling dice and collect gems, which are valuable treasures. The dungeons are filled with various dangers, and players have the freedom to choose whether to fight or flee. They can also interact with other adventurers within the dungeon, fostering a sense of camaraderie and enjoying the thrill of dungeon life.

In addition to dungeon exploration, players can create their own adventurers using the gems they have collected. With 30 different classes to choose from, players can customize their adventurers to suit their playstyle. Uncover the mysteries hidden within the dungeons and become the sole solver of the enigmas surrounding the presence of mythological beings and the gathering of people in this dungeon.