I have a question about the theory behind your system choice that may be slightly esoteric.

Percentile systems tend to reflect a very linear probability curve, so while your chances of success increase with a better number, the chances of success in any one endeavor with modifiers follows a linear path.

Other systems that use 2 or 3 dice for rolls have a bell-shaped probability curve, which establishes average (the center part of the curve) and exceptional (the edges) areas of probability.

In my opinion "reality" tends to follow a bell curve, and thus provides a better simulation. Granted, "better simulation" is not absolutely necessary in a game, but I like it personally.

So my real question is: how did you look at probability curves for this system?

Percentile systems tend to reflect a very linear probability curve, so while your chances of success increase with a better number, the chances of success in any one endeavor with modifiers follows a linear path.

Other systems that use 2 or 3 dice for rolls have a bell-shaped probability curve, which establishes average (the center part of the curve) and exceptional (the edges) areas of probability.

In my opinion "reality" tends to follow a bell curve, and thus provides a better simulation. Granted, "better simulation" is not absolutely necessary in a game, but I like it personally.

So my real question is: how did you look at probability curves for this system?

Rob Boyle :: Posthuman Studios

I know that there are many ways to skin a game system (and that everyone thinks their way is the best!), and was just interested in the concepts behind those decisions.

Over the years I've tended to move towards more simple (though not simplistic) systems that don't get in the way of the story, so I'm heartened by the answers thus far.

Speaking as a DM, the simplification in eyeballing is a major perk for me.