Masterspace has been discontinued. Similar games include Minecraft. It's paid, but Luanti (formerly Minetest) and VoxeLibre (formerly MineClone2) are free. Other options are Terraria, Garry's Mod, Roblox and eaglercraft. You're spoiled for choice with Sandbox Games like Masterspace: we list more than 50 alternatives for Windows, Mac, Linux, Android and iPhone.
Blocks That Matter (BTM) is a 2D indie puzzle platformer.
You are the Tetrobot: a tiny robot that can drill blocks of matter one by one, collect them, and recycle them into new pieces of 4 blocks. You also have the possibility to destroy lines of 8+ blocks in a very «retro.
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BlockWorld is an addictive independent action sandbox game similar to Minecraft with full destruct-able environment, monsters and challenging quests.
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Worldcrafter is a sandbox game in the style of Minecraft. You control an avatar who can move and jump around a world, which is completely different each time you start. The game is designed to be open-ended, so players can decide how they want to play, whether construct...
Disaster strikes a remote research base on a distant moon. Your escape pod malfunctions and slams into an uncharted, Earth-like planet. You wake with nothing but wreckage, your instincts, and a whole world to tame.
Allumeria takes a classic voxel sandbox and combines it with in-depth progression through exploration, dungeon crawling and boss battles. You will constantly be discovering new weapons, abilities, resources, enemies, structures, mechanics and tools.
Lay of the Land is a sandbox adventure game set in a fantasy world where everything is physically simulated. Use the environment to your advantage and Explore, Fight, Loot and Build your way through mysterious lands.
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Browser-based space MMO recreating classic gameplay, featuring real-time multiplayer battles, space exploration with allies, ship upgrades, PvP combat, missions, loot, top-down design, fleet tactics, and free play on any device without installation or downloads.
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