Left 4 Dead 2 has 5 server regions worldwide.
US East
Virginia / New York High population Primary North American region. Players report US East as highest-population NA region. Set Steam download region to a US East location to prioritize these servers. US West
Los Angeles / Seattle Medium population West Coast Valve servers. Lower population than US East but well-connected. Pacific timezone evening peak. Europe
Frankfurt / Amsterdam High population Active European server pool. EU players typically achieve 15-50ms on regional servers. High mod/custom campaign activity. Asia
Singapore / Hong Kong Medium population Asia region servers. Active community; 24/7 servers reported in Singapore. Community servers supplement official pool. Australia
Sydney Low population Australian servers exist but smaller population. Community servers (reported in Sydney) supplement official matchmaking. Community-run 24/7 servers reported in 2025. Connection: Hybrid (dedicated + P2P)
Most ranked/competitive sessions use dedicated servers. Some casual modes or custom lobbies may fall back to peer-to-peer hosting.
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