PC Classic Star Wars: Battlefront 2 Has Multiplayer Servers Again, Including Cross-Play - GameSpot

Multiplayer support has been restored for the 2005 shooter on PC, allowing Steam and GOG users to play together in harmony.
This sequel to Star Wars Battlefront improves upon its predecessor with a variety of gameplay enhancements, such as upgraded AI, more than 16 new battlegrounds, and greater story emphasis. In addition to the rebel, clone, and droid warriors from the original game, you can play as a Jedi, complete with lightsaber attacks and force powers.

Buy Star Wars: Battlefront 2 (Classic, 2005) Steam

Star Wars: Battlefront 2 (2005) multiplayer update, supports cross-play between GOG and Steam : r/Games

Is Battlefront 2 Crossplay: All You Need to Know! - Player Counter

STAR WARS BATTLEFRONT 2 Will Not Have Offline Multiplayer On PC — GameTyrant

News - May, 2015

Star Wars: Battlefront 2 multiplayer restored, now with Steam/GOG crossplay

Star Wars: Battlefront 2 multiplayer restored, now with Steam/GOG crossplay

Players Slam Classic Star Wars: Battlefront 2 PC's Servers After Online Multiplayer Returns

Does Battlefront 2 have multiplayer?

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