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attn: PortalFan77In General Off Topic Discussion · 17 years ago

Compileing Problems (Vrad.exe)In General Off Topic Discussion · 17 years ago

Need a few testersIn Hammer and Modding · 17 years ago

Mod .exe?In Hammer and Modding · 17 years ago

Texture Error?In Hammer and Modding · 17 years ago

Can't Look up and down using game padIn General Off Topic Discussion · 17 years ago

Is my map worthless?In Hammer and Modding · 17 years ago

Putting Portal sounds in custom soundscripts?In Hammer and Modding · 17 years ago

Hopefully, the right boardIn General Off Topic Discussion · 17 years ago

Song CopyrightsIn General Off Topic Discussion · 17 years ago

The Mist - Half-Life connection?In General Off Topic Discussion · 17 years ago

MDL Decompiler Error!In Hammer and Modding · 17 years ago

Turret ammo problemIn Hammer and Modding · 17 years ago

Particle editor issueIn Hammer and Modding · 17 years ago

New Chamber Enter SignsIn Hammer and Modding · 17 years ago

Grap a box?In Hammer and Modding · 17 years ago

Gonna be gone for a few daysIn General Off Topic Discussion · 17 years ago

Chell's Legend - Portal modIn Hammer and Modding · 17 years ago

Door ProblemIn Hammer and Modding · 17 years ago

So, Getting back on the mapping horse.In Hammer and Modding · 17 years ago

Portal | Underground Story V2?In Hammer and Modding · 17 years ago

[WIP] Second Chance At LoveIn Hammer and Modding · 17 years ago

Portal: Prelude Video :Not really any spoilers but some:In General Off Topic Discussion · 17 years ago

The greatest thing since sliced bread.In General Off Topic Discussion · 17 years ago

Companion cube?In General Off Topic Discussion · 17 years ago

[Release] Aperture Discord/Test Chamber 23In Community Releases · 17 years ago

Portal: Project BetaIn General Off Topic Discussion · 17 years ago

Map Reload ProblemsIn Hammer and Modding · 17 years ago

I need a few maps that are challenging.In General Off Topic Discussion · 17 years ago

no Portalgun?!In Hammer and Modding · 17 years ago

[WIP] PMK 5In Hammer and Modding · 17 years ago

Happy Birthday, ThinkingWithPortals!In News and Announcements · 17 years ago

First map: Cryo Chamber Release - Need Help!In Hammer and Modding · 17 years ago

Mystery extension in the save file.In General Off Topic Discussion · 17 years ago

So I have to bragIn General Off Topic Discussion · 17 years ago

Companion Cube Pixel ArtIn General Off Topic Discussion · 17 years ago

It's counting down...In Hammer and Modding · 17 years ago

[WIP] Logic Portals : GLaMS-DOSIn Hammer and Modding · 17 years ago

Respawn Cube?In Hammer and Modding · 17 years ago

OMG Someone at Facepunch ownsIn General Off Topic Discussion · 17 years ago

Portal: PreludeIn General Off Topic Discussion · 17 years ago

StoryLines for PortalIn Hammer and Modding · 17 years ago

Cross hairsIn Portal Single Player · 17 years ago

Where the hell is my Portal gun?In General Off Topic Discussion · 17 years ago

how to get screenshots without the portal gun ??In Hammer and Modding · 17 years ago

[WIP] Kaiser Test Chamber (Early Prototype)In Hammer and Modding · 17 years ago

Fizzler questionIn Hammer and Modding · 17 years ago

Cubemaps in next mapIn Hammer and Modding · 17 years ago

Development ModIn General Off Topic Discussion · 17 years ago

Which custom maps here use the portal-inspired music pack?In General Off Topic Discussion · 17 years ago