Game servers: UDP vs TCP

“Have you heard this said: “Reliable UDP is just like TCP, so use TCP instead”?
The problem here is that this statement is false. Reliable UDP is unlikely to implement TCP’s particular brand of congestion control. In fact, this is exactly the biggest reason why you use reliable UDP instead of TCP – to get rid of its congestion control…”

http://1024monkeys.wordpress.com/2014/04/01/game-servers-udp-vs-tcp/

Hint: http://enet.bespin.org/

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