TOT is the only game in the Civ2 series I could go back to after tasting Civ3's graphics.
TOT is different than the classic or MGE game - it's actually 4 different games, plus improved graphics and unit animations, but without the king's council or wonder movies. The 4 games are a normal version, and extended version where when your ship lands at AC you have to colonize it, and sci-fi and fantasy versions of the game, with different units and multiple worlds/overlapping maps. Can get very complex!