It varies from cheap (around $10) to as much as you're willing to spend. You put chips on a card, and you use the card to play the games. Most games are only around 5-6 chips, and its about $30 for 200 chips. With that said, you're spending about a dollar - if not less - per game.
Micah is correct but to add to him you can buy meal that come with chips as well
If you have the Dave and Busters charger app you get offers all the time for free play with purchase of play.
The games cost different prices depends on which game you want to play
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