Star Wars Galaxies (2003)
Prior to the release of The Old Republic in 2011, Star Wars Galaxies had made its name as the ruling massive multiplayer game for nearly eight years. Developed by LucasArts and Sony Online Entertainment, Galaxies offered up a dense gaming experience, blending combat and exploration, crafting and economy systems, professions, classes, bounties, vehicles, and other complex mechanics. Though The Old Republic would eventually streamline many of these systems with a more newb-friendly coat of paint, hardcore MMO fans embraced Galaxies as the defining simulation of a life far, far away.
Star Wars: Battlefront (2004)
Released in 2004, the first entry in the Battlefront series built upon the multiplayer elements of previous Star Wars titles, namely the Jedi Knight series. But where those games had focused on creating a compelling single-player narrative, Battlefront aimed for complete, connected, online immersion. Scattering players across four warring factions, the game enacted wide-scale multiplayer mayhem across authentic, fully realized environments.