How to change the player and traffic limits on a Euro Truck Simulator 2 server

server_config.sii controls the player cap and the amount of AI traffic each connected player can spawn. Do not alter the dedicated or virtual port values alongside them.

1. Stop the server, open Configuration Files and choose Text Editor for server_config.sii.
2. Set max_players no higher than the slots assigned to the service.
3. Adjust max_vehicles_total, max_ai_vehicles_player and max_ai_vehicles_player_spawn if AI traffic is too heavy.

   

4. Click Save & Exit and start the server.

max_players: 8
max_vehicles_total: 100
max_ai_vehicles_player: 50
max_ai_vehicles_player_spawn: 50

Lower AI limits first when the session struggles under load. Very high values can increase CPU use and traffic density for every connected player.