If nothing has happened by now, your files and computer are most probably okay. I can think of a keylogger that can collect passwords, but I don't think there are such distributed with this ransomware. Anyway, it depends where you downloaded the game from. If it was from a website you trust, then you should be okay, but if you downloaded from PirateBay or some unofficial mirror you should scan your PC and registry for viruses (malware).
In this day and age, I wouldn't risk it with a cracked version.
I am not sure but I think the mobile version is free, which you can make be displayed on your PC and use a keyboard.