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Fold your own companion cube!In General Off Topic Discussion · 17 years ago

Thinking With Portals?In General Off Topic Discussion · 17 years ago

Ignus SolusIn General Off Topic Discussion · 17 years ago

October Map Contest Voting Has BegunIn News and Announcements · 17 years ago

[RELEASE] Small pack of new voices.In Community Releases · 17 years ago

Ball catcher?In Hammer and Modding · 17 years ago

TF2 StatsIn General Off Topic Discussion · 17 years ago

[WIP] DaMaGepy 01In Hammer and Modding · 17 years ago

Nice Portal wallpapersIn General Off Topic Discussion · 17 years ago

Trick-or-Treating With PortalsIn News and Announcements · 17 years ago

Interview With Erik Wolpaw, Writer of PortalIn News and Announcements · 17 years ago

Portal/Half-life 2 ClipIn Hammer and Modding · 17 years ago

'Still Alive' played on GMod piano!In General Off Topic Discussion · 17 years ago

Need sound engineerIn Hammer and Modding · 17 years ago

Source SDK UpdateIn General Off Topic Discussion · 17 years ago

More GLADOS quotes needed!In General Off Topic Discussion · 17 years ago

TF2 Movie Clip of Super PwnageIn General Off Topic Discussion · 17 years ago

Map helpIn Hammer and Modding · 17 years ago

Designing mapsIn Hammer and Modding · 17 years ago

[WIP] Accident ProneIn Hammer and Modding · 17 years ago

Welcome back FusionIn General Off Topic Discussion · 17 years ago

Something is wrong with Deep with in ApratureIn Hammer and Modding · 17 years ago

The Music of PortalIn News and Announcements · 17 years ago

"Skate Park" map ideaIn Hammer and Modding · 17 years ago

Texture ProblemsIn Hammer and Modding · 17 years ago

DiddyKong42 Posts?In General Off Topic Discussion · 17 years ago

No func_door entityIn Hammer and Modding · 17 years ago

ITT: I post NullSoldier's login and account informationIn General Off Topic Discussion · 17 years ago

companion cube for vivi *FINISHED*In General Off Topic Discussion · 17 years ago

Emancipation Grids - How To?In Hammer and Modding · 17 years ago

Lost Chamber Zero by ebolaIn Portal Single Player · 17 years ago

vgcats do portal, sort of 🙂In General Off Topic Discussion · 17 years ago

As you may have noticedIn News and Announcements · 17 years ago

Vent ServerIn General Off Topic Discussion · 17 years ago

Reviews PageIn News and Announcements · 17 years ago

[WIP] Portal: The Quest for CakeIn Hammer and Modding · 17 years ago

Companion Cube Chronicles (spoilers inside)In Hammer and Modding · 17 years ago

Portal cleanser removing prop_portalIn Hammer and Modding · 17 years ago

Victims of Science - The Device has been ModifiedIn General Off Topic Discussion · 17 years ago

Update On SDK TimeframeIn News and Announcements · 17 years ago

Well... I suck at this.In Hammer and Modding · 17 years ago

Just saying hi!In General Off Topic Discussion · 17 years ago

Heh, non-HL or Portal related, enjoy.In General Off Topic Discussion · 17 years ago

Alyx or Chell?In General Off Topic Discussion · 17 years ago

Custom maps cross-compatible PC/Xbox 360?In Hammer and Modding · 17 years ago

Now Accepting: DonationsIn General Off Topic Discussion · 17 years ago

Working on AvatarIn General Off Topic Discussion · 17 years ago

[Release] My first Puzzle map.In Community Releases · 17 years ago

[WIP] vLuxuriaIn Hammer and Modding · 17 years ago

Odd Texture Error (Hammer)In Hammer and Modding · 17 years ago