Roblox is described as 'Online platform for 3D world building, avatar customization, multiplayer play, and user-generated game development with trading, achievements, and a virtual economy' and is a popular Sandbox Game in the games category. There are more than 50 games similar to Roblox for a variety of platforms, including Windows, Mac, Android, Linux and Web-based apps. The best Roblox alternative is Garry's Mod. It's not free, so if you're looking for a free alternative, you could try KoGaMa or VoxeLibre (formerly MineClone2). Other Roblox like games are LEGO Worlds, Core Games, Terasology and Yahaha.
A basic game for Luanti (formerly Minetest) developed by the Minetest team, often referred to as "Vanilla Minetest". It includes mods for basic tools, nodes, & an API for player visuals.
A multiplayer brick building game that gives you the tools to create and play, your way. Build and invent with your friends, or blow them to smithereens!
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!
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.
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.
Brick Hill is the ultimate building block game, allowing you to push the limits of digital bricks and make your own games.
Brick hill is probably one of the longest standing and most successful Roblox clones They are currently developing a new game client and so far it looks pretty good
Brick Hill is one of the pioneers of the alt-ROBLOX community. It has a tight-knit community, some great games, and there is a new client in the works that will improve the quality of the platform tremendously. As of right now, it's the best alternative to ROBLOX.
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!
This is more of a minecraft clone. It has nothing similar to roblox...
IS IDEAL FOR SIMILAR ROOBLOX
Roblox is not even like this game because on this game you build but people dont play your game in roblox you make games like unity and roblox is made out of different games so roblox isnt coparablr to any of these games
The MMO, Cubed.
Trove is an open-ended voxel adventure through countless realms filled with quests, chests, and enemies great and small.
It's simply not a building game. Sure, you can place some blocks around the world, but are there special effects? Interactive experiences? This game will never be able to Power Imagination.
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
Play free online games or create your own and share with friends. No downloads or coding needed. Play in your browser on iPad, mobile or desktop.
This game is focused in parkour however is a great alternative to Roblox
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.
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Habbo is a 2d hangout game, Roblox is a 3d online platform. In roblox you can expect a much more variety of games. In Habbo, you can create rooms, chat with other players, Habbo is more of a social game and Roblox is more popular and you can develop games.