The game consists of two major parts: a nautical mode in which you operate your own ship with AI cats (crew) and go on adventures, fighting other ships and sea monsters, and a port mode in which you customize your ship, replace crew, and cash in resources obtained in battle.

The game consists of two major parts: a nautical mode in which you operate your own ship with AI cats (crew) and go on adventures, fighting other ships and sea monsters, and a port mode in which you customize your ship, replace crew, and cash in resources obtained in battle.