Suddenly, The Demon Lord's Labyrinth Appears
Release date: Sep 19, 2025
Developers: Oyatsu Games Studio
Publishers: Oyatsu Games Studio
Genres: Indie, Strategy
Categories: Single-player, Steam Achievements, Custom Volume Controls, Playable without Timed Input, Stereo Sound, Steam Cloud, Family Sharing
Supported languages: English, Japanese

A brand-new card game that fuses deckbuilding roguelike mechanics with classic RPG elements! Choose from three distinct classes—Hero, Rogue, and Wizard—each with its own unique card pool, and enjoy fast-paced, strategic gameplay. Build your own deck and venture into the deepest depths of the dungeon! 


Notes: When attacking enemy monsters, there is a depiction of blood spurting out.