Blocksworld was a physics-based 3D sandbox and visual programming game originally developed by Boldai and Linden Lab.Key FeaturesBuild & Code: Players used digital "blocks" (cubes, wedges, cylinders) to build complex 3D creations, ranging from simple race cars to spaceships and walking robots.Action Logic: It featured an intuitive visual programming language that allowed users to snap action commands (e.g., drive, fly, shoot, explode) to their models using motors, rockets, and sensors.Community: Included an online marketplace and community hub where players could share their models, trade in-game coins, and publish custom games.History & AvailabilityOriginal Launch: First released for iOS in 2012/2013, it later expanded to PC and Mac via Steam.Server Shutdown: Official servers were completely shut down on June 17, 2020, and the game was pulled from digital stores.Revival Plans: The IP and development rights were acquired by Fortell Games Inc. As of 2026, a revival—including potential Virtual/Mixed Reality updates—is in development but has not yet officially relaunched.