The amount of games that use those kinds of dice make his contribution to tabletop gaming incommensurable. Sad to see him passing. But 91 yo is more than respectable

More than just the d100 he was a pioneer of being very exacting when it came to making polyhedral dice. See http://www.1000d4.com/2013/02/14/how-true-are-your-d20s/

It had never occurred to me that somebody needed to invent polyhedral dice. There must be so many inventions in the world that I’m completely unaware that there was a point in time before which something didn’t exist and after that it did, thanks to somebody.

The internet reports that D100 is impractical to use but it's cool if your game design calls for a relatively rare "ritual value".

I just throw 17d6 and subtract 2.

Problem solved.

(I am joking!)

I've never played any games that require this, but the Wikipedia page makes reference to percentage rolls, but wouldn't you need 101 sides to get 0% and 100% for that?

The study of imperfection in dice that makes them settle on certain favoured numbers by Louis, helps clear superstitious story of Mahabharata whereby the character named Shakuni, had dice made of his dead father's ashes who/which always respects/fall on numbers he desired,threby winning/cheating in game of Chaupad, that ultimately lead to biggest war in human history