Morale

Morale is an indication of the morale of your Fleet, that is, whether or not you will be able to Attack during the current Turn. If you have a positive Morale you may attack. If your Morale is negative you cannot attack. It is that simple. Your morale goes down each time you attack, but the amount it goes down varies depending on the size of the empire you attack. If the empire you attack is smaller by planets than your empire, your morale will go down more quickly than if the empire you attack is about your size or larger. Don't go picking on newbies or you may be vulnerable to attacks and you won't be able to retaliate.

The decrease of morale is also affected by your diplomatic state. If theres a Non-Aggression Pact between your family and your target's family, you should note that morale losses will be 2.5 times as much as normal. If your target is in War with someone else, you will lose 4 times the amount of morale you would loose normally. Attacking a family member's Home Planet doesn't reduce morale at all if you succeed, but will go down if you fail.

Morale constantly rises 5% per turn until it reaches 100%. It will then rise to a maximum of 110% with 1% per week. Morale Bonus planets give you 1% extra morale growth per morale planet, per tick