Modular RPG Terrain. Straight Out Of The Box WHAT IS TENFOLD DUNGEON? Tenfold Dungeon is our fully immersive, right-out-the-box 3D settings for your RPGs, dungeon crawlers and skirmish games. With amazingly detailed art printed in every box, and 1” x 1” grids discreetly layered into the environment, Tenfold Dungeon provides a high-quality, atmospheric play space…