Complete an "assassinate bandit leader" mission.

Complete a "destroy bandit outpost" mission.

Complete a "destroy monster-infested outpost" mission.

Complete a "rescue hostages" mission.

Complete an artifact mission.

Become a perfect example of symbiotic harmony.

Complete a round as an Assistant.

Restore a run-down beacon station.

Finish the campaign.

Accept the offer of a senior humorist to join your crew.

Reinforce your crew with an eminent Coalition leader.

Employ the skills of a celebrity chef to your crew.

Allow an enigmatic religious leader to assist your crew.

Learn to laugh at the Grand Joke of the Universe.

Bolster your crew by hiring a steadfast Separatist leader.

Enlist the services of an elusive explosives expert.

Complete a round as a Captain.

Complete a cargo mission.

Complete a "clear alien ruin" mission.

Obtain a full clown costume.

Defeat the Separatists in a PvP submarine-vs-submarine mission.

Defeat the Coalition crew in a PvP submarine-vs-submarine mission.

Defeat a Separatist submarine in the campaign mode.

Defeat a Coalition submarine in the campaign mode.

Venture 500 meters away from the sub.

Discover the Cold Caverns.

Discover the Europan Ridge.

Discover the Hydrothermal Wastes.

Discover the Aphotic Plateau.

Discover the Great Sea.

Complete a round as an Electrical Engineer.

Complete an escort mission.

Heal someone back from a critical state by performing CPR.

Cure a husk infection.

Recover from an opiate addiction.

Kill a Charybdis

Kill a clown.

Kill a crawler Broodmother.

Kill an Endworm.

Kill a Hammerhead.

Kill a latcher

Take down a Moloch.

Kill something with nuclear explosives.

Kill something with morbusine.

Kill a giant spineling.

Kill something with a plasma cutter, welding tool or a wrench.

Take down a traitor before they manage to complete their objective.

Complete a round alone after everyone else in the crew has perished.

Complete a round alone from start to finish.

Face a complete and utter disaster.

Complete a round as a Mechanic.

Complete a round as a Medical Doctor.

Complete a mining mission.

Complete a "destroy monster nest" mission.

Complete a round without any casualties or damage to the submarine.

Repair a broken device.

Complete a wreck salvage mission.

Complete a "scan alien ruin" mission.

Complete a round as a Security Officer.

Descend below 5000 meters.

Spend 24 hours in the submarine editor in total.

Accelerate a submarine to over 100 km/h.

Take the submarine down to crush depth and survive.

Complete a round after a nuclear meltdown.

Successfully complete a traitor objective.

Travel over 10 kilometers.

Travel over 100 kilometers.

Kill 100 creatures.

Kill 100 humans.