Portal: Aftertouch
First Person ShooterThis Mod takes place between Portal: Prelude and the original Portal. Its the Year 2009... Glados has a new Testsubject with number #44362881 (her real...
Portal Issued is a alternate universe where Chell sees all the horror that happened in Aperture and has to stop the madness that is happening
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This Mod takes place between Portal: Prelude and the original Portal. Its the Year 2009... Glados has a new Testsubject with number #44362881 (her real...
Portal done Half-Life Source is a mod in which you are required to play through Portal 1's maps with the weaponry, movement and glitches featured in Half-Life...
After escaping the Aperture Facility, Chell comes upon the Black Mesa facility, which has been taken over by the Combine. After being caught, she must...
Hello, and welcome to Otter Research Facility! You are currently at: Area 6 Testing Chambers. Please quickly make your way to....3rd Testing District...
In this universe, Cave Johnson survived long enought to be uploaded to GLaDOS instead of Carolin and is now the central-ai of the Enrichment center. History...
Lambda Land takes place in the Lambda Facility where you play as Gordon Freeman. In this world, Freeman instead has to turn on the core of the facility...
Taste The Cake is going to take the Aperture Science Enrichment Center to a whole different level of experiments.
Updated: 10/12/22 - RTX installations are available. Updated: 25/3, solving subtitle size and credits font size issue, adding credits, solving some minor...
This portal mod has you playing through the events of portal, But glados is busy with another subject. So, instead you are testing with a core named Eric...
Portal: Reverb. In Portal: Reverb, you play as the first Test Subject in the ASHPD Testing Sequence after GLaDOS' little accident with the Enrichment...
Projex is a Valve's Portal Mod which is a personal creation that tributes the fabulous game of Portal. This is more of a skin rather than a real-game...
Darkness: The Portal Demo is the official Demo to an upcoming mod called Darkness. Darkness is about a multi-dimensional being who has gone to different...