Mad Doc threw a myriad of different options, strategies, units, buildings and technologies together into a single game and then allowed it to span more than 2000 years, they ended up with perhaps the most comprehensive strategy title ever made. Maybe there's just a little bit too much game here for most people though, it's quite honestly like 5 games in one and would probably take as long to master as five normal games, Empire Earth 2 certainly isn't deficient when it comes to value for money.