JOKER'S VAULT
I have to say this is a fun little video poker game....though I usually won't play it unless things are slow elsewhere.. This game is by far the most difficult game I ever had to analyze. I sat down on this play just long enough to get some screenshots:
http://www.imgur.com/hAjdTvE
This is a one joker game where every time you make a full house, wild or natural, you get a set of ten free games. The payscale is the same in the ten free games but there are two jokers in the deck. If you make a full house in the ten free games you are awarded another set of ten free games. When you win at least 8 of the ten free games you are awarded the money in the meter. You can bet up to $2 on this game but only have to bet fifty cents to qualify for the meter. The meter starts at $100 and runs at 1.6666%.
The next screenshot is where I made a full house:
http://www.imgur.com/EyAXtGb
You can see the vault next to the progressive meter. And you can see there are seven hinges on the vault. Every hand you win will light up one of those hinges. When you light all seven of them up and win the next hand you will get the money in the meter.
The next screenshot shows where I had all sevens hinges lit with one game to go. This is where the game gets exciting. The next hand carries a huge EV. All I need is two pair or better to win the meter.
http://www.imgur.com/6Zvq5mz
On the next hand I was dealt a pair of jacks and bombed on the draw.
As stated, a tough game to analyze. I had to enlist some help to teach me some new math tricks. But here is what the final numbers look like. The average value of a regular full house is 22.91. I couldn't enter that into the software so I entered 23 for both the single joker and the double joker game. Leave the rest of the payscale the same and this will give the strategy to the game.
It take an average of 145 sets of free games to take the meter off. Since full houses in the free games triggers an extra set of free games one only has to make an average of 123 regular full houses to take the meter off.
The number of regular games per meter hit is 7877. The average cost to produce the meter hit is $250. Playing straight through the game has a return of 95.95% plus 1.6666% meter movement. So a 97.62% return.
But if you only play high numbers the return is much better. In the screenshot the meter is at $572.
572 minus 250 = 322
322/3938.5 = 8.1757%
The 3938.5 figure is derived from 7787 X the fifty cent bet.
So finding a meter at $572 is a 105.79% play. At my speed of play the average time to take a meter off is 9 hours. That makes this about a $36 an hour play. And that's why I don't play the game much. I have much better hourly's on other things.