I recently made a games you hate thread and hate is a strong word now its time for an old games you love thread.
for me it is Halo 2, Knights of The Old Republic, Mercenaries Playground of Destruction, Lord of the rings battle for middle earth anthology, Brute Force, Star Wars Battlefront , StarWars Bounty Hunter, Animal CrossingGamecube, Super Smash Bros. Original for N64, Starfox 64, Starfox Adventures, Conker's Bad Fur day Reloaded on Xbox hated the N64 controls only reason otherwise original is best.
I realize none of these games are ancient yet but most of them are over 10 years old and these are the games I grew up playing .