Starcraft uses a mix of TCP and UDP[1]. I can't find the link now but I remember something about a late switch from TCP to UDP in the beta of the first StarCraf

Starcraft uses a mix of TCP and UDP[1]. I can't find the link now but I remember something about a late switch from TCP to UDP in the beta of the first StarCraft 2 game and some pretty unstable network gameplay while they were tweaking the error handling. 1. https://us.battle.net/support/en/article/300479 https://us.battle.net/support/en/article/300479