Stealth bomber

The stealth bomber deals extra damage to every defense installation, from the Mortar to the Large shield dome. The more defenses your opponent has, the more it pays off. Against planets without defenses, only its normal combat stats count.

Stealth

The player under attack only notices stealth bombers once they have covered half the distance: until then they are missing from the display of the incoming attack, and a fleet made up only of bombers cannot be seen at all. That cuts your opponent's reaction time considerably.

When are they worth it?

Stealth bombers are expensive, need a lot of kryptonite and burn a lot of spice. They pay off if you regularly attack heavily defended planets or plan surprise attacks.