Like the first part of Legends of Grimrock 2, this is an action RPG that focuses on the dungeon crawl. The game draws inspiration from games like the Dungeon Master, adding a lot of modern parts and mechanics. For example, the game has non-linear gameplay and multilayered levels.

The player gains control of the party from one to four characters and together with them explore 3D grid-based levels from the first perspective. Heroes are prisoners who, after a shipwreck, ended up on the secluded Isle of Nex. The island is full of ancient ruins and riddles, underneath it lies a network of caves and dungeons, which the heroes have to explore. The game tries to concentrate on the exploration and survival of the player offering puzzles from time to time. The game is only available for a solo completion. There are 42 types of enemies here and more than 20 hours of gameplay. And new adventures can be done by using the built-in dungeon editor.