Lego Worlds is a Lego-themed sandbox game. The game allows players to build constructions in a 3D procedurally generated world.Lego Worlds is a Lego-themed sandbox game. The game allows players to build constructions in a 3D procedurally generated world.Lego Worlds is a Lego-themed sandbox game. The game allows players to build constructions in a 3D procedurally generated world.