Minetest
Minetest is set in a world full of blocks shaped like cubes. Gameplay is in the first-person camera for normal, but players also have the option for third-person camera. The game world is composed of in-game 3D objects, many of them are just simple cubes, commonly called nodes. Different in-game nodes (blocks) represent different materials, such as dirt, stone, ores, tree trunks, water, and lava. The core gameplay revolves around picking up and placing these objects, one node at a time. Nodes are arranged in a 3D grid, while players can move smoothly around the world. Players can mine blocks and then place them somewhere else, granting the permission to them to change (modify) the game world. Players can also craft a wide variety of hand-held tools to help them with the world change. Pickaxes allow players to dig rocky nodes, shovels speed up the digging of dirt and sand, water buckets allow to pick up water nodes, etc. A player controls a 3D character known as Sam, which is first-letter acronym for "Sam ain't Minecraft".