I quoted SCTP wiki page, if you using them in combination that means either multiple ports or you need another protocol so you know what type of frame you're ge

I quoted SCTP wiki page, if you using them in combination that means either multiple ports or you need another protocol so you know what type of frame you're getting which adds overhead. felixgallo already covered most of my points, gaming has some specific requirements that a lot of these protocols don't provide.