Luanti (formerly Minetest) is described as 'Luanti is a near-infinite-world block sandbox game and a game engine, inspired by InfiniMiner, Minecraft, and the like' and is a very popular Sandbox Game in the games category. There are more than 50 games similar to Luanti (formerly Minetest) for a variety of platforms, including Windows, Mac, Linux, Android and iPhone apps. The best Luanti (formerly Minetest) alternative is Minecraft. It's not free, so if you're looking for a free alternative, you could try Veloren or VoxeLibre (formerly MineClone2). Other Luanti (formerly Minetest) like games are Terasology, Vintage Story, LEGO Worlds and Novetus.
Download and Play Best FREE 3D sandbox blocks craft game with Creative Multiplayer and Survival Modes! Build creative 3D world online, get resources, craft items in survival, tame animals, watch out mobs and survive! Explore worlds created by others.
Blockscape is the next generation voxel sandbox game. You play in a computer generated world made out of blocks.
MAGE stands for MAKE A GAME EXPERIENCE
The goal for MAGE is to make it as easy as possible for people to create their own 3D universes, adventures and stories. PLAY WHILE YOU CREATE!.
An alternative to the Java web game "Minecraft Classic" that was listed on the official Minecraft site but taken down in 2016-2017.
Kidblock is: Building, exploring, world sharing, multiplayer, mobs, rocket launchers, lasers, TNT, swords, crafting, mining, farming, protecting, gameplay recording and much more!
Brick Hill is the ultimate building block game, allowing you to push the limits of digital bricks and make your own games.
Portal Knights combines the exploration and building elements of Minecraft with the RPG aspects from games such as Zelda. It provides a sandbox, in which players can explore, fight monsters, craft items, and construct buildings, armour and weapons.
Stranded is a 3D survival game. You are playing the role of a castaway and your goal is to "simply" survive on the purportedly lonely island at whose sandy beach you have been washed up by the sweep of fate.
Make the world truly yours in Junk Jack, a relaxing sandbox experience focused on building and improving your home. Discover new planets, tame and breed creatures, cook foods, collect animal companions, farm exotic plants, collect fish, grow flowers, play with your friends!
Desktop game world where kids can customise their home, explore worlds, collect and care for their Pora Pals, & play educational games.
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Also open-source and moddable!