A:Answer This would be more than plenty enough to run Roblox, actually way more than you need. You'd be wasting money spending this much money just for him to play Roblox. This is for really intensive games like Call of Duty and Cyberpunk 2077, which if your son plays mostly Roblox he sounds young, and those games are not for kids, but i cant say much because i was probably playing not the best games for me at a young age. But to each their own, so if you make the extra money and really dont care about the money you spend and just wanna see that smile on your sons face then by all means go for it. I am just informing you, that you can get a much cheaper laptop if all its being used for is Roblox. So it really depends on if he is going to be playing other more intensive games or not. If its just Roblox you could save a lot of money, and if he's worried about it being flashy with like the colorful lights and stuff there are plenty of cheaper more budget friendly laptops for easier to run games that are flashy like that. If you do get this one for him, make sure you teach him to not click on random ads and things like that when he's on the internet, or to not go to weird or sketchy websites. It'd suck to spend $1,800 for him to get viruses on it and ruin it.