A Principia recreation of HottuB's 4-bit binary counter level in Apparatus. From a simpler time before all the circuitry and electronics in Principia was added. Level: https://principia-web.se/level/1182 Principia is a free and open source physics-based sandbox game featuring mechanics, electronics, robots, puzzles, Lua scripting and more. You can read more about the game and download it for the supported platforms at: https://principia-web.se/