Hold 400 credits in your storage at one time.

Beat the game.

Defeat an enemy submarine after reaching 95% water level.

Defeat an enemy submarine by killing the crew.

Beat the game without defeating any submarines (excluding boss).

Get a high score of over 1,000 in the arcade game Stampers.

Complete the Precious Cargo challenge.

Complete the Defunct Engine challenge.

Complete the Late Lockdown challenge.

Defeat an enemy submarine by burning the crew using submarine fire weapons.

Temporarily disable a hostile automaton using a fire extinguisher while on an enemy submarine.