On a more technical level, the host's computer renders the game in question while also shouldering two other burdens: it must stream its game video to other participants, and it must juggle all incoming buttons and commands from other players. Valve's email promises that this will support a 1080p video signal sent to other players at a 60 frames-per-second refresh, though all players must have at least a 10Mbps connection for "a successful low-latency connection."

应该就是视频流
可惜不是直接把GGPO插件塞进去……

引用:

原帖由 卖哥 于 2019-10-11 16:26 发表
posted by wap, platform: Meizu M9
老游戏没有联机多人

不止老游戏
大部分怀旧风的全新独立游戏也没有