Gary Grigsby is a designer well known to computer wargamers. His contributions to the genre include classics like War in Russia, U.S.A.A.F., and Pacific War. Earlier this year, TalonSoft released Grigsby's Battle of Britain, which can best be described as a dry run for its follow-up 12 O'Clock High, a monstrous simulation of the entire air war over Europe from 1943-45. Not a flight simulation, 12 O'Clock High is a strategy game in which you fight for control of the European skies one day at a time. While the concept has tremendous appeal, the execution unfortunately ends up falling short of being a truly good game.