Indie Game Developer and Head of Lowtek Games Alastair Low has recently shared a couple of demos, showcasing an incredible new golf mode added to his Pop-Up Book game, which combines digital world and the real world without a headset. Powered by Unity, the new mode allows one to play a mini-golf-like game on multiple physically-drawn levels, with the golf ball and flag, obstacles, and a shot counter being projected onto the pop-up book. According to the developer, the project utilizes an Android smart projector" for projection mapping.