i bought the game today and have the 5 parts. but 4 of them are bin files what do i do with them exactly. i click on it but it say's it cant open error thing and use a program or something or another ether way need help.

The following instructions apply to all GOG games with multiple parts.

Save all the files for each game you download in it's own directory. For this game I chose: GOG-installfiles\Riddick

Now, click on the exe file. The game will install. Using the installer you'll chose where you want to install the game. After it installs, you can play it.

Yes,like hudfreegamer said you click on the file ending in - .exe,.......the bin files contain all of the game files that are to be installed and the exe file installs them to the game directory on your hard drive.......