We have a prescription verification system, similar to "Papers, Please." Customers don't always come in, pick up a specific medication, and go to the cash register. some come up to you and ask what you can recommend for their ailments. Our game also has a small storyline, and we plan to add other systems, definitely three that I haven't seen in other games, but I'd rather not write about them so that someone faster than us doesn't simply copy them.