1. If the Game Crasches after Launch, you might want to Check if you have all the requirements.
It States that you Require a Creativ Senz3D Camera.
2. You DO NOT require Portal 2 to Play this Game!
3. If you have any Problems DO NOT post them as Reviews, go to the Descussion Tab!!!!
And lastly my Review.
I really like Portal, so I downloaded this because it was shown as a Game I might Like on Steam. After it Crashed on launch I asked GOOGLE for a solution and found out that it requires a Camera.
The Developer, or even the Steam Team, should consider making the FIRST Picture you see on the Shop Site a Clear notice that you requre that Camera!
I will go and try if I can get the Camera, because from the very few Reviews that wer not Spam, I got the impression that this is a fun Game to Play.
To the Dev: Next time consider doing the Camera Controlls as a Optional Control Methode beside Keybord+Mouse, more like a Controller. You can use it but you do not have to.
AND: Please try making it more obvious that this Title requres that Camera...