Hi guys!
I got a laptop with Vista on it, but didn't find it good enough, so i downloaded Linux Mint. Now this is the only OS on it.

I downloaded a game, and installed it successfully, but... At the installation i had to add a location, where the folders whould go. After I hit Browse, I only could choose a location in C:\Program Files\....
As far as I know, this is the Windows specific file system. I can't choos any other Linux specific folder. But the game still installs. The problem is, I can't find the installed folder, wich would be vital.

Anyone with a solution?

it seems that you unknowingly managed to install a windows game - this is usually done through wine. please refer to their documentation, you should be able to find the windows directory structure somewhere on your linux install, probably under $HOME/.wine or $HOME/.config/wine.