"An unsinkable floating fortress! Unless the enemy scores 4 perfect hits. But what are the odds of that?"
Battleships are the seventh tier of Military industry. They require 10 B Artilleries to unlock and cost 100 T Artilleries, 100 ZZ Bullets, and 4 Comrades without cost reduction researchers. The first mission requiring Battleships occurs at Rank 59, and starting at Rank 60, the player can unlock Captain J. Spaddock to automate and speed up battleships.