You can beat the Anno 117: Pax Romana campaign between 8 and 12 hours, with most people completing it in around 10 hours.

At the start, the player's city will have minimal issues, but as they increase their City Status in Anno 117: Pax Romana, ...

pax is one of the lesser known utilities in a typical Linux installation. That's too bad, because pax has a very good feature set, and its command-line options are easy to understand and remember. pax ...