I haven’t played for a couple decades but never used minis when we did, occasionally the DM would arrange some dice if we needed some visual aides but was never measuring distances and hex grids or anything. Some of us even played wh40k at the time so it wasn’t that unknown, we just never played tabletop RPGs like tactical games. It was also 2nd Edition not even third, so awhile back. Shadowrun games needed the visual aids more than DnD usually.

I was thinking I hope he enjoys below ground windowless rooms. Though I guess the below ground covers the windowless but you want your bases covered just in case. Also no tea.

Yes 00 = 100%, 01 = 1%, percentage and no 0%, you don’t roll same colours so you can call which die is which digit, or could roll one twice to make a percentage.

It’s either 2 D10s (one for each digit) or a single D100 but D10s are so common that two dice are usually the way to roll it. So yes there are D100 out there.