From Custom Solutions of Maryland:
Slot Machine is a simulation of a slot machine with three wheels. Player starts with 20 tokens and can wager 1, 5 or 10 tokens per pull. Payout is approximately 85% (similar to Las Vegas). One, two or three 7s provide payouts of 2, 6 or 70 tokens. Sound is supported.
What's new in this version:
Version 2.4.0 is compatible with El Capitan.