build a plugin that :
Choose any slot ( [url removed, login to view] )
and integrate with mycred point system plugin.
How it works:
user can use the mycred point to deposit some amount into the slot game to play, and can withdraw back to mycred point.
export amout have to deduct 5% service charge.
If you understand what i mean please quote me ..
there is many job for mycred if you are experience with this plugin...