[cyberhypnotic]

Typically, yes that's all both tar and zip files will have. However, there are some games out there that require an extra swf file, such as an intro or loader.

The zip files PHP file will be (example) - pacman.game.php and the tar file will just be pacman.php, if that helps with any questions you might have in mind.

I never opened them either until some of them did not work, so I was curious as to what was inside. Turned out that, depending on where you download games from, some of the PHP files aren't scripted correctly. They're missing some lines in the PHP file(s). Like I said, this depends on where you download games from also.