Not knowing how long a game will last can be frustrating for those just looking for a quick sessions. On top of this the terrain will not be known until a round is started, which means it could potentially be stacked against the player, which makes for unknown difficulty before a round is started.
By playing the campaign mode users can easily get used to the game at a comfortable pace, with new elements getting introduced the further one makes it. This is a great way to learn the gameplay as it can get complex.
There is a mission mode (which is great for those that want to learn the ins and outs of the game through progression) and a sandbox mode (which is more like a city builder where it is up to you how to create your civilization). This makes for a good choice of different play depending on what the...
The art in the game does not represent different time periods very well. The game starts out in the early 20th century and eventually builds up to the modern era. It does not matter what time period the player is in, little in the design of the games is representative through graphics changes.