Not sure, some options are:
NES - Bionic Commando
Gens / MD - Saint Sword (not that good game, but playable
- to complete game have to finish all levels one more time
)
DOS - Dune 2
PC - Rise of Nations: Rise of Legens (great game, I started last campaign, after this game I'm planning to play Medieval: Total War, another great game)
PS2 - Shadow of Collosus (this one I played more then half trough, but for some reason I just lost interest)
Amiga - thinking to play either Rodlands or Blues Brothers.