Hello. I've been developing games for about 6 years. I've made turn-based online games for the last 2 years. I have a real-time online space game made with Unitywebrequest http requests. We're developing a computer game right now. But I felt I was lacking in server-side programming. I've always used PHP-MySQL by communicating with server requests with http requests. But I've read that for a game where thousands of real-time players can be online, this connection may remain weak and put unnecessary burdens. But I don't know much about TCP socket connections. Since I'm curious, will there be much difference between TCP and HTTP requests (with PHP query)? If there will be a lot of difference, how can I make the TCP connection easier? Because I usually used PHP and I always made queries through PHP. I don't know if it's easier or because I'm used to it. What I want is to actually use the PHP query with MySQL again, but I want to provide the TCP connection if this possible. What is your advice about this, what do you think I should do? By the way, I'm sorry about my bad English. Thank you.