Games my kids and I enjoy on Steam:
(Not Xbox sorry)
I dunno if you want him playing a true mmo at that age, but old school RuneScape is currently as popular as ever. Specifically old school though, RS3 has the same sort of problems with micro transactions etc.
Minecraft
Games my kids enjoy without paying one cent...
All the games they play
We spend zero dollars on video games and yet our kids seem to play a lot of them, my wife and I don't really play. They even had a friend give them an Xbox and there are computers and tablets and phones in our house. Games don't have to be a money pit.
Deep rock galactic
Just let them play minecraft instead. Minecraft dungeons could be good but it's only 4 people at the same time tho.
Factorio provided you want a group of kids that you never see again that can all program their own PLC devices
Roblox is full of different kinds of games, right? Why don't you find out the kinds of games he likes there and find recommendations based on that? It's a start at least. I would imagine most of the Roblox games are clones of better games anyway.
He and his entire friends group on roblox got banned from it in a single day. We're trying to not be jerks by providing a better game to replace it with. But from what I saw - he was playing some game where he stands there and pokes at a robot that gets bigger while things around it die. Not very stimulating.
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