This game needs a Random Map Generator badly. If it had that, it would have been better than Dungeons 3 (Has Random levels). I will have to put my hard-earned dollars on Dungeons 3 for now.
This is it. One of the best games of al time. I like it better than the other two (Great games also) for one main reason. The Bots are more lifelike and act like real humans. I have this game on disks, but I bought it here also because of the low price and to support GOG for doing a great Job bringing old games on the PC. I do not like companies that try to Monopolyze any Market. That's why I am proud to say I own zero games on steam. I have more than 50 games here.
The Major Strength of Civ III is the Map Editor. More flexible and easier to use for the average player than Civ IV. The "World Builder" of Civ4 only allows you to alter scenarios from the installation or randomly generated maps. You cannot create maps from scratch - you can only change what has already been created within predefined parameters.