@Stefani24 and Hoshimodo: I guess both of you have other Source Engine Games activated in Stam (HL2 maybe?). After installing the MOD (which is an automatic process) it shows up in Steam. But after starting it tells me that no Source Engine Game is installed (which Portal is, but it doesn´t help).
Even in the Portal Prelude Forum there are people with the same problem... maybe the same people like me, who only have Portal activated in Steam
Edit: Some guy over at the Portal: Prelude Forums found a solution (Post #6) for all those people without any other Source game in Steam... I´ll have to try that now, so long... see you next week
What an awesome game, I suggest just to finish it for the ending song which is just as great as the entire game.
Most fun game I've played in a while, props @ the OP for posting about it being available for free on Steam.
Honestly, now all I want to do is go online and screw around with the portal gun tossing a companion cube at someone from across the map, or maybe see who can keep one at terminal velocity longer...
it said restart steam to make it work, but i thought when it wasnt a window it wasnt there so it was automacally restarted...but turns out nope, thanks again
well i tried the prelude thing, and no luck, tried the guide, no luck; now im just re-installing the prelude thing, and hoping for the best...in the folder where there was suppossed to be "portal prelude" and rename it to "portalprelude" i couldnt find the file, so i skipped it
Anyone tried "ren test 2" map from bethesda really great level, well designed and with brilliant gameplay ideas like a giant rotating room,took me forever but I finished it, i wish the actual game was this challenging.
actually, i thought it was boring until i got a bitinto the game, once it started needing more brain power then patients to get everything lined up right, and patients to get to a part that you like, it is a great game
If you take it at face value (Portal based puzzle game...) then during the first few levels with a single portal it sux balls. But it's only a few hours long so stick it out...