It's a weekday night at the Welcome Stranger pub in downtown Melbourne. Tom Cummings, who used to be a regular here, shows me around the gaming room.
"This machine here, which is called Shaman's Magic, has four different jackpots that you can win. If you'd like to give it a whirl, you can see how you go," says Cummings.
The machines here take Australian $50 bills (Australian dollars are currently worth almost exactly the same as U.S. dollars). You can lose $1,200 in an hour. And a win is not always what it appears to be.