Portal: Revolution on Steam

Portal 2 - Wikipedia

传送门大型MOD《Portal: Revolution》确定明年1月登陆Steam-即启官网

Portal: Revolution – Portal 2 Mod

Portal: Revolution on Steam

portal: Portal Revolution mod: How to install, system requirements

Portal 2 Prequel Mod Gets Intriguing Trailer

Portal: Revolution już dostępny. Wyczekiwany mod zadebiutował na Steam

portal: Portal Revolution mod: How to install, system requirements

The best Portal 2 mods

Fan-Made Prequel Portal: Revolution Releases After Short Delay

Portal: Revolution is a mod that's keeping the Portal universe alive

Portal: Revolution on Steam

Steam: Portal 2 is getting a free to download prequel