Though I am not usually a fan of turn-based strategy games, occasionally one comes along which is able to engage me with surface simplicity, and, before I know it, has me in the throes of complete addiction. Tic Tac Toe, a game created by Paul Neave as an apparent advertising tie-in for the popular breath-mint line, is one such game. A work that manages to reward cautious planning while retaining its power as a grim reflection on the nature of aggression, Tic Tac Toe presents an amusing challenge along with questions that cannot be easily dismissed.
Another classic game, and this one needs no introduction. Arguably the single game that injected the most excitement into arcade video games during their infancy. Original game: copyright Namco, 1980; this version hand-coded in Flash by Paul Neave.