FourWins - 82%
Utility, Freeware, all Ataris
Author: Christoph Zwerschke
http://www.cix.co.uk/~inactive/

FourWins is a GEM version of the popular game "four in a row". The user 
has to pit his/her wits against the computer (Level 1 novice to Level 9 
Expert) by taking turns to insert a counter into the seven columns. The 
player who manages to get four of their counters in a row, vertically, 
horizontally or diagonally first, wins! The game, though simple, is deeply 
compelling. FourWins accepts mouse or keyboard input and has a helpful 
undo feature that allows you to step back through each turn of the game! 
(great for when your concentration lapses!) Although not graphical as the 
lastest console game, FourWins has that "just one more game" appeal!

Matt Burton