Evony loyalty explained
Loyalty is important in Evony, and your goal should be to have your cities at 100 loyalty at all times. This is the maximum loyalty that you can have. Evony updates your loyalty every sixth minute, this is called an Evony tick, and if your citizens are unhappy by something your loyalty will decrease by 1 every tick. Your loyalty can also decrease if you happen to be attack, this is how you conquer cities in Evony after all. With every successful attack against your city your loyalty will go down. Loyalty is closely relation to tax rate and public grievance, more about this here.
In the start of new servers you’ll manipulate loyalty with comfort reliefs every 15 minutes to keep your population at maximum with 100% tax rate. This is only the first weeks of the server however, when resources are cheap. After that you’ll just keep your tax rate at 0% all the time and thus have loyalty at 100 all the time. It is more important to have loyalty at 100 than to have the little tax income later in the game when gold is almost worthless.

What is the point of loyalty in Age 2 if you can’t conquer a city? Yeah loyalty goes down if you are attacked but what is the point of reducing it?
Purps
22 Apr 10 at 10:12 pm
in age 2 loyalty is simple as you don’t need to worry about being conquered anymore. put simply loyalty = 100 – tax rate. so if tax is 20% loyalty will be 80%.
Population also works on loyalty, so if loyalty is 80% then its simply total population e.g 1000 multiplied by 80% or 1000 x .8 which will give an actual population of 800 if its allowed to grow.
aLk
27 Apr 10 at 8:35 pm