After watching Nerd Cubed play Coin Pusher Casino, I also got hooked. Bit of a guilty pleasure, that. But, three things to recommend it, though:

1. Realistic physics throughout make it quite a technically advanced game despite it probably all it took was a toggle in Unity.
2. There’s a native Linux port.
3. Other than the initial outlay for the game the only resource you’ll expend is your precious time alive. So, there’s no freemium model where you pay to advance. And no payment for additional unlockable content.

You play tables to get credits, to get perks that make it more pleasurable (not to mention possible) to play tables, to … The very essence of an RPG grind. And a bit of a skinner box.