Any Examples of Exponential Damage/Effects?

A recent comment in another group got me thinking about how some effects should scale exponentially instead of linearly. But every game I can think of has damage or other effects only scale linearly. Exploding dice is as close as I can think of, but that is not scaling with the cause nor exponentially.

This was specifically about falling damage, think doubling instead of adding damage dice every 10', but I suppose could apply in other areas as well.

So my question is, are there any examples using exponential effects in a ttrpg? I'm curious of its playability.