I found the game confusing. The dealer does not seem to play blackjack by the rules as I know them, and the lack of spacing between game messages means it's hard to see what the latest update is. There isn't an opportunity to cheat, or to see through the dealer cheating - it would have been nice if Sense Motive, Spot and Sleight of Hands played a part here. The dealer sometimes neglects to claim an automatic win when he hits 21, and claims the player's busted when the PC gets 21.
And what do these "scores" mean anyway? What's an "Empty" card?

As for the "crossbow slots", it needs an explanation. Actually, it needs a few. What is it? A machine? A system? A magic box? How does it work, what does it do and how high is the Disable Device DC to rig it?