Earlier this year, Blue Prince found great success borrowing from tabletop games that let players build dungeons as they explore them, adding layers and layers of puzzles on top. Into the Restless Ruins finds a whole new path for roguelike deckbuilders. At first, Into the Restless Ruins seems pretty simple. Exploring Into the Restless Ruins’ dungeons is only half the battle. Roguelike deckbuilders are everywhere these days, but Into the Restless Ruins is one of a kind.