Veloren is a free and open source open world multiplayer voxel RPG Game for Linux, Windows and MacOS. This game is heavily inspired and combination of Minecraft, Cube World, Dwarf Fortress and Legend of Zelda: Breath of the Wild. This game is still in alpha stage but payable. It is released under the GNU GPL 3.0 license and written in Rust.
Veloren Minimum System Requirements:
You need 2GB of free disk space, 4GB of RAM, multi-core CPU and GPU with OpenGL >= 3.2 support.