Game Dev Lab: Retro Platformer 8-Bit Bloxels Get ready to build your own version of Mario Bros.! In the world of Bloxels you can build your own universe all by using eight color block cubes. Each block has a specific gameplay trait and some can be configured. Create backgrounds & characters. Animate your characters and give them power-ups. With Bloxels, you become the artist, writer, designer and director of your own retro-style video game!