don't download it. don't even look at the download button. i haven't played it, but it is bad news. it clogs your hard drive by porting a bunch of portal/ hl2 content to portal 2, and it installs rad video tools (not necessary, guys!)and even puts some random source code into your steam dir. and get this: you can't even play it when it's done doing all that crap, because steam trys to update the mod, and OF COURSE that never finishes! so here's a spoiler: this stinks.don't download it. don't even look at the download button. i haven't played it, but it is bad news. it clogs your hard drive by porting a bunch of portal/ hl2 content to portal 2, and it installs rad video tools (not necessary, guys!)and even puts some random source code into your steam dir. and get this: you can't even play it when it's done doing all that crap, because steam trys to update the mod, and OF COURSE that never finishes! so here's a spoiler: this stinks.