Operation Crux - An open source LEGO Universe server emulator.

Roblox - Reimagining the way people come together.

Brickadia - Make anything, brick by brick.

Brick Hill - Brick Hill is the ultimate building block game, allowing you to push the limits of digital bricks and make your own games.

Crey - Platform for making games and experiences

Veloren - A multiplayer voxel RPG. Inspired in games such as Cube World, Breath of the Wild, Dwarf Fortress and Minecraft.