Jan van Leyden
Adventurer
GURPS does it on a hex grid, but it's considered optional as part of the "Advanced" combat rules.
Okay, but GURPS' Basic Combat is very basic... I can't really imagine anyone using this.
GURPS does it on a hex grid, but it's considered optional as part of the "Advanced" combat rules.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.