Boss Fight

Boss Fight is a battle mode in which players fight a boss - a single large, very powerful ship - accompanied by several squadrons of regular AI enemy ships. Boss Fight is unlocked after completing stage 30 in AI battles. Defeating bosses will award the player with bonus income and gems.

Bosses
There are currently five types of bosses, which are fought in the following order:

Battlecruiser → Corvette → Battleship → Dreadnought → Lasercruiser

After defeating the Lasercruiser, the cycle repeats and the bosses become more difficult.

Rewards
Killing bosses awards the players with bonus income and gems. Each kill increases bonus income by +5% and gives a number of gems. The rewards earned can be seen in the table below.