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September 29th, 2014, 04:27 AM  #1  
Newbie Joined: Sep 2014 From: Athens Posts: 1 Thanks: 0  Payout percentage of a slot with free spins and changing multiplier
Hello community of mymathforum, I have run into a problem that I can't solve, hopefully somebody here knows the answer or he/she can point me to the right direction. I'm writing a tool to test a slot game. I don't know the reels (symbols composing the reels) of the game, but through my tool, I can collect all (hopefully (Tongueout)) of the information I need. The thing that I'm missing is the formula to calculate the payout percentage. The game has reelset for the "main" game and another one for the "free spins". I calculate the PoP of the main game which is 60.746115 %. Every time a free spin is triggered is gives the player 15 free spins. The free spins have an initial multiplier by 2 (first time they get triggered in the main reelset). So every win combination in here gets multiplied by 2. Every time a free spin is retriggered in the initial free spins round (free spins reelset) the multiplier gets up by one. So if the initial trigger of free spins is 2 if it retriggers it becomes 3, and if it retriggers again it becomes 4, and so on. The probability of a free spin to be triggered from a normal reelset is 0.05859375 The probability of a free spin to be retriggered from a free spin reelset is 0.2447047766 The virtual PoP of free spins (virtual because you don't spend any actual credits in them) is 162.1783335454 if you don't count the 2 multiplier or 324.3566670908 with the multiplier (2). Up to now I can get the PoP of a game where the multiplier is stable throughout the retriggers. But in this game thing are different. By the way here is the output the tester gives me Quote:
Last edited by uruz7; September 29th, 2014 at 04:32 AM.  
September 29th, 2014, 08:25 AM  #2 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms 
I don't know enough about slots to help you.


Tags 
changing, free, free spins, multiplier, payout, percentage, slot, spins 
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