The game is controlled entirely by mouse. Left click to begin.
The first thing you must do is buy furniture for your boat. You have 2 nuns to begin with, so keep this in mind.
When you click Sail the game may pause for a few seconds (or longer) while the AI maps out potential nun paths. You may cut this time down by building loads of walls (thereby limiting the amount of paths the nuns can take)
After the nuns board the boat you may left-click on any one of them to view their stats and portrait.
If a nun's fun-metre falls below 0% she will enter a state of "Nun Rage". This is to be avoided.
In "Nun Rage" a nun will act irrationally and murder other nuns if they step in her way.
When choosing a distination you will notice some are marked as "Rich!" or "Holy!". Rich places generally give a lot of money while holy places give a lot of nuns.
As long as at least one nun is still alive, your journey will continue.
Try to sail as far as you can and have fun on your magical voyage!