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  • Going Wild: Slot Machine Math Tutorial 2

    Going Wild: Slot Machine Math Tutorial 2

    In Part 1 of this Slot Machine Math Tutorial series we showed how to create a PAR sheet to describe the math behind a simple slot machine game. The example game we used, the 1899 Fey Liberty Bell, had only one payline and no Wild symbols. Now let’s explore how the math changes when we…


  • Creating PAR Sheets, Slot Math Tutorial 1

    Creating PAR Sheets, Slot Math Tutorial 1

    What is a PAR Sheet? A PAR sheet is a spreadsheet-like tool for defining the math model of a slot machine game. PAR is an acronym for Probability and Accounting Report. PAR sheets were originally used when designing physical slot machines. Of course today they are just as effective when designing slot games for online…


  • Slot Machines Aren’t Real Games — Or Are They?

    Slot Machines Aren’t Real Games — Or Are They?

    In the world of video games, slot machines get a bad rap. I have worked at game studios where the slot game developers were biding their time, just getting their job done until they could find a way to work on “real games” instead of slots. Before I started learning how to make good slot…


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