If you want the credit to be raised with each new post it would be easy to add some code on the addpost page to update the credits field as well.
How would the poker game work? Would you play against the computer, or against other visitors in real time?
Some of the simpler games of chance would be quite easy to do.
Maybe this would need a small API, where each game can call a function to read the credits and set them, so they all use the same credits. Hmm. But what happens if the credits gets updated by other games while they are playing something else (if they are playing several games at the same time)?
