I hate building too 😂. I've played Roblox too. My son's interests in games moves too much for me to learn another game. Blox Fruit, if I have the name right, was fun.  

 FYI there is a Fortnite mode without building now. It’s pretty popular.
It’s funny because the game was originally supposed to be a co-op zombie defense building game and accidentally was a smashing competitive success.