This game is quite good. It includes a variety of structures and units. You can play one of the campaigns, start a random map game, and even take your play online. There are all kinds of civilizations from the ancient world, from the Egyptians to the Greeks, even the Phoenicians! The game includes a scenario editor for making your own maps and you can even craft your own campaigns with hero units such as Alexander the Great.
Gameplay is simple. There are four resources. Wood, stone, gold, and food. You can use use wood and stone to construct buildings, such as houses. Gold, food, and wood are used for training combat units. Certain buildings can produce these units which you use to attack your enemies and destroy their cities. There is less of an emphasis on tactics and more on mass attacks, but it is fun nonetheless.
There are all kinds of conditions for victory, you could destroy all your enemies militarily, construct a wonder and defend it, and you can capture ruins or artifacts. Games can go on for hours, and if you want to play online, be sure to set aside a lot of time. If you like strategy games, you might want to pick up this classic.