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### Game Ports for Online Play

The following ports must be open in order play online:

####
Incoming/Outgoing Ports

Port | Protocol | Purpose
--- | --- | ---
33334 | TCP, UDP | Game play
33335 | TCP | File tranfers
33336 | TCP, UDP | Pre-game matchmaking

####
Outgoing Ports

Port | Protocol | Purpose
--- | --- | ---
80 | HTTP | Web requests
15106 | TCP | Master server communication
15202 | TCP | Authentication
15300 | TCP | Machine connection detection
15800 | TCP | Account maintenance
20961 | TCP | Lobbies

Outgoing ports are subject to change; it is recommended that all outgoing communication be allowed when you play online.

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