M.U.L.E.

The Good
This game is more complex than just about every modern resources management game I have played. It's not complex mathematically. It's complex in the number of strategies you can employ. Many modern games are "fake" complex and force you to understand advanced mathematics to simply model the game. Even after you apply all of these advanced techniques, these modern games are in reality much more simple than MULE.

The Bad
The limitations in graphics and computer memory limited how much they could do in this game. The maps could be larger, the resources more detailed, and the games longer. Modem support would have been great.

The Bottom Line
This is the great grand daddy to all of those 4x strategy and RTS games. MULE set the ground work for the resource management aspects of every modern strategy game. The only thing it didn't have was actual combat.