作品“P( )rtal: The Trailer ”属于这个展示区：
Portal Games
Created :3 年秒, 9 月秒
Description :This gallery is for all games based on the popular game "Portal" If they have no relation to that game, then they are no welcomed here. Anyone can put a prject in, but please keep it on the subject. The cake is a lie!
Number of Projects: 21
Valve Themed
Created :4 年秒, 6 月秒
Description :For those games inspired by any of Valves games!
Number of Projects: 10
Thinking with Portals
Created :4 年秒, 6 月秒
Description :Put your Portal (Valve game) related submissions here!
Number of Projects: 1
