It's also amazingly still going - I've played since 2003 (beta launch was 1996) - probably the oldest "action" MMO https://store.steampowered.com/app/352700/Sub

It's also amazingly still going - I've played since 2003 (beta launch was 1996) - probably the oldest "action" MMO https://store.steampowered.com/app/352700/Subspace_Continuum/ https://store.steampowered.com/app/352700/Subspace_Continuum... The techniques used in the game ended up being replicated in many other games and apps. Its networking was also key to the low lag it is entirety based on a custom UDP network stack that can send both reliable and unreliable packets.