What are some alternatives?
When comparing Freeminer and Terasology, you can also consider the following products
Voxelands - The Fun-Focused Free Software Voxel World Game.
Terraria - Dig, Fight, Build! The very world is at your fingertips as you fight for survival, fortune, and glory.
Creativerse - Creativerse is a sandbox adventure game set in a beautiful yet treacherous world shrouded in...
Minetest - Minetest is a near-infinite-world block sandbox game and a game engine, inspired by InfiniMiner...
Roblox - Use ROBLOX Homepage and thousands of other decal to build an immersive game or experience. Select from a wide range of models, decals, meshes, plugins, or audio that help bring your imagination into reality. Read more about Roblox.
SurvivalCraft - SurvivalCraft is a mobile action and adventure game that is based on the wildly popular Minecraft platform.