Markus Persson tweets about drop, a new Unity-engine game from the Minecraft creator also known as Notch. He says this is inspired by the Ludum Dare competition, as well as Super Hexagon and the ending of Fez (thanks Polygon). Also, VG247 notes that The Road is an actual Ludum Dare entry from George Broussard formerly of 3D realms. This game was created in 48 hours, a development cycle approximately 200,000% shorter than that of Duke Nukem Forever.