GameDuell also have an 8 ball pool game available on the site from what I can see.

It's called 8-Ball Pool and looks like the graphics are pretty good.

When you first go to the game it's a little annoying that is seems like you can play pool straight away as it shows a screen with the 8 ball gameduell game ready to play with the cue moving around and the angles towards the balls but when you try and click on it the game is not live, it just goes to a login screen.

This seems a little like cheating you into thinking you're already playing the game to me.

In some ways it does help to be able to see the 8-ball pool game prior to actually deciding to login and play it but they need to be more obvious that you can't play it straight away but will need to login!