One of the most popular alternatives to Roblox is Garry's Mod. It's paid, but VoxeLibre (formerly MineClone2) and Terasology are free. Other popular alternatives are Polytoria, LEGO Worlds, Yahaha and Minetest Game. There's no shortage of Sandbox Games like Roblox, with more than 50 alternatives for Windows, Android, Mac, Linux and the web.
S&box is a platform and game development toolkit developed by Facepunch studio powered by Source 2. Initially, the development was based on Unreal Engine 4, but as soon as Half-Life: Alyx came out, Facepunch immediately requested the engine branch of the newly-published game.
United Kingdom
dot big bang is a browser based video games platform where people can play, make, and share games. It works on any device with a browser, with crossplay on all platforms.
United States
The MMO, Cubed.
Trove is an open-ended voxel adventure through countless realms filled with quests, chests, and enemies great and small.
Mini World is a 3D free-to-play sandbox game about adventure, exploration, and creating your dream worlds. There is no grinding or leveling up. No IAP gate that locks features from free to play players. Everyone can enjoy the game’s full features with great freedom
Join the worlds largest virtual hangout where you can meet and make friends. Design your own rooms, collect cool furniture, throw parties and so much more! Create your FREE Habbo today!
Finland
EU
Creativerse: The Definitive Edition is a sandbox adventure game set in a beautiful yet treacherous world shrouded in mystery. Adventure solo or bring your friends, unearth secrets, and tame the land together!
United States
Dreams is a critically acclaimed gaming platform for Playstation that lets people explore other peoples' game creations as well as build their own using a bewildering array of assets created and shared by other people.
All Out is an AI-native multiplayer gaming platform where players can instantly jump into games and play with friends directly from their browser on any device. Players can explore a growing library of multiplayer games across social deduction, RPGs, party games, survival...
Canada
Growtopia is a multiplayer sandbox platformer with crafting. There are an infinite number of worlds where you can create with friends. Everything in the world can be grown from trees. Discover new items by mixing the seeds of trees you already have.
United States
Manic Digger is an open-source implementation of block-building games, like the famous game Minecraft.
PolandEU
A game builder offering unique creative tools that are fun and easy to use. You can create games without having to learn texturing, modeling or mapping.
Drop into a world of unlimited imagination – and llamas – with the LEGO Fortnite game! What will you build?
