Roblox is very fun and addicting (playing it for about 2 and a half years). You could do almost everything: build your own place, go to other created places(such as tycoons, minigames, fighting places), use weapons, chat, customize your character/avatar, and more stuff. The game is using bricks like LEGO, and the people are like this:


Kaboomaboom


That is my character.


I think that you should try it. You could play as a guest to see if you like it, and then make an account. Setcomx also plays it.