Microsoft will switch off Halo 2 PC multiplayer next month. February 15th will mark the service end date for Halo 2 PC multiplayer. There are multiplayer Achievements for the game. After Halo 2 goes offline, they will be unobtainable. Halo Waypoint's Jessica Shea explained:
"We've been monitoring the population for months, and it's been peaking consistently at approximately 20 players or less. Those that own this game can continue to enjoy Multiplayer over LAN after that date; however our network services will be turned off at that time."
Halo 2 launched on PC in May 2007, two-and-a-half years after it released on Xbox. It's always a sad day when a server gets taken down. So long, Halo 2. You can take the server, but you can never take the memories!