Is My World copied from roblox?

No, high-degree-of-freedom sandbox game is a type of game, not a patent of roblox. I don't know the sequence before and after the release of these two games, and I haven't played roblox, but the introduction of roblox is still very different from my world, which can be seen from other geometric figures of roblox. It may be similar to some extent, but the two games have gone their separate ways in basic content.