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How to make a wall open?In Hammer and Modding · 17 years ago

Cube Re-SkiningIn Hammer and Modding · 17 years ago

Thinking With Portals Steam GroupIn General Off Topic Discussion · 17 years ago

Custom Box Textures (NO NOT A REPEAT OF MY PREVIOUS TOPIC)In Hammer and Modding · 17 years ago

Portal Opening Bed sceneIn Hammer and Modding · 17 years ago

how to make Bmz?In Hammer and Modding · 17 years ago

Portal Stories contest!In General Off Topic Discussion · 17 years ago

GET REDDY TO RUMBLE (HOBER WINS THE INTERNET)In General Off Topic Discussion · 17 years ago

Awesomeness on http://www.aperturescience.com/In Portal Single Player · 17 years ago

Making a Portal gunIn General Off Topic Discussion · 17 years ago

A Green Hammer!In Hammer and Modding · 17 years ago

vphysics penetration error (prop_physics) !In Hammer and Modding · 17 years ago

I need some helpIn General Off Topic Discussion · 17 years ago

[Release] of Fire TextureIn Portal Single Player · 17 years ago

The Perfect Flame TextureIn Portal Single Player · 17 years ago

Take outa a Litle peace of a wallIn Hammer and Modding · 17 years ago

Anti-aliasing Companion Cube Signage?In Hammer and Modding · 17 years ago

Breakthrough in Portal DesignsIn Portal Single Player · 17 years ago

'Max Vertexes Reached'In Hammer and Modding · 17 years ago

Sound RequestsIn Hammer and Modding · 17 years ago

If life had a console... (Hijacked, now about Mr. T)In General Off Topic Discussion · 17 years ago

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 · 18 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