Portal is a first-person puzzle game. Players must solve physical challenges by opening portals to maneuver objects, and themselves, through the enigmatic Aperture Science Laboratories.
These small maps makes running Portal MP server easier.
Extract maps to C:\Program Files\Steam\steamapps\<Your Steam Account Name>\Portal\portal\maps\
If you want to invite your friends, it's posible through Steam, but if it's not working, type status into console and tell an IP to your friend.
To start the server, type the following commands: