Official Servers
Official servers maintained by developers or platform providers for multiplayer gaming.
guide not written yet
also on NSW · PSP · PS3 · NDS · 3DS · PSVITA · PC+
Parsec
A streaming platform that allows online multiplayer gaming by sharing a computer's screen.
guide not written yet
also on PSX · NSW · SNES · PS3 · Wii · GENESIS · PS2 · GBC · PS1 · ARCADE · NES · GAMECUBE · XBOX · NDS · SATURN · 3DS · N64 · GBA · Dreamcast · PC+
Remote Play Together
Instantly share your Steam local multi-player games with friends over the internet, for free.
guide not written yet
Warehouse
Revival Servers for Transformers Games for PC and PS3
guide not written yet
also on PS3
Play it with people
Find people to play Steam with
1 member here plays STEAM. Set up once, then the site tells you when they're on.
Nothing open right now. Open a lobby and the members who play it hear about it.