The biggest selling point is that Roblox solves multi-player and multi-platform out of the box and is completely free. Unlike Minecraft, Roblox in itself doesn

The biggest selling point is that Roblox solves multi-player and multi-platform out of the box and is completely free. Unlike Minecraft, Roblox in itself doesn't actually do anything, all you can do is play games you or other users have created. In many ways it closer to the old Second Life than Minecraft. My daughter treats it as equal part social network and multi player gaming platform.