Since official GameSpy master servers were shut down years ago, the community uses alternative methods to connect.
The "Remake" project is a fan-made modification designed to modernize the 2005 classic with better textures, new weapons, and improved AI. Download SWAT 4 Remake OnLine
: Visit swat4stats.com to see a live list of active public servers. Since official GameSpy master servers were shut down
: In the game’s main menu, select Join Game → Direct IP and paste the IP address of the server you want to join. Download SWAT 4 Remake OnLine
If you want to play the Remake mod privately with friends, you will need a virtual LAN tool because the game's "Internet" hosting often requires complex port forwarding. Download SWAT4 Remake Mod v1.4.1 here!