Master Guidelines are the fifth type of guidelines. They cost 80 Cents and can be used to shorten construction or research time by 10 to 30 hours.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.