A friendly correspondent (who, like me, is working on a home-brew game system but isn't ready to release) asks me about ideal implementation of "log ST" in a system. Log ST is the name commonly given to a game feature that sets levels of character Strength to an exponential progression, so that every extra +1 Strength mutliplies the previous level of power by some amount.
Typically, that'll be expressed as every additional X levels of Strength multiplying lifting power by some easy-to-grasp multiple Y. An example is in the HERO System, in which every +5 Strength multiplies lifting power by 2. Read more...