Try importing the latest version (1.1.3) from the Asset store. Do this in an empty project. It appears that something is missing from your package, as the install should start automatically.
Actually i don't have the latest version. I get the game creators from my Developers friend.
well, thats probably why it won't install. You need to purchase a valid copy from the Unity Asset Store.
Actually this is very costly. I'm a Student, i can't afford it. But i need this tools. This would really help me.
I'm closing this ticket since piracy is something we will not tolerate. You've got some nerve to not only publicly admit you've pirated Game Creator but also requesting support.
Customer support service by UserEcho