The sandbox is where you go for unlimited resources, to try out new ideas and push them to the limit. Place as many items as you want and build the most epic base. Other than that, it's the same as MooMoo.io, and you can still be killed by other players, who also have unlimited...
Moomooioplay.com shares useful game guide, moomooio items, skins, mods, tactics, tips and private servers about Moomoo.io game.