BitGem A retro, Zelda-esque dungeon construction set for top-down adventure fun! This set of easy to use geometric toon-style dungeon level building blocks can be used to rapidly build exciting levels. The blocks are real-world scale and built to fit together perfectly on a 25x25 cm grid. They come with a bunch of fun animations and their solid, chunky build makes them easy to handle and you never need to worry about seams. The colours are also easily adjustable.