Portal 1 (Released Map)
Completed custom maps and campaigns for the original Portal.
Portal: Facility
Uploaded by Mapster · Oct 16, 2007
35 comments · ★ 5.0 (1)
A custom map for portal made by Mapster A custom map made by Mapster which was especially made for Portal. A newer version is in the making.
Crazy_for_Cake map file [RELEASE]
Uploaded by Sleepwalker · Oct 16, 2007
11 comments · ★ 0.0 (0)
Short map by Sleepwalker. Small demo map that requires lots of flinging.
Y2 ChallengeMaps: Challenge1
Uploaded by y-aji · Oct 16, 2007
0 comments · ★ 0.0 (0)
First of a series of simple Challenges for Portal. Challenge1 of my first 6 challenge series. This map includes a combine ball challenge, and a button challenge.