Jeremy is looking for a challenging gift for his 7-year-old kid, living in the UK, that he can play with him online. Leo says that there's a fun networking puzzle computer game that you can play with your kids, called Factorio. It requires cooperation, and you can communicate via Discord. That could be a fun but challenging game. Brilliant is another one, but that's a bit mature for a 7-year-old. Probably better for middle school ages. There are also Words with Friends and Animal Crossing.