Level up to level 30 with the submarine Demolisher.
Defeat a boss on normal difficulty.
Upgrade a chipset slot to maximum level.
Level up to level 30 with the submarine Ninja.
Unlock the submarine Demolisher.
Defeat 1,500 electric eels.
Defeat 16,000 piranhas.
Level up to level 30 with the submarine Resistant.
Level up to level 30 with the submarine Harvester.
Defeat 750 electric eels.
Defeat 3,000 puffer fish.
Defeat 24,000 jellyfish.
Upgrade all weapon slots to maximum level.
Unlock the submarine Ninja.
Level up to level 30 with the submarine Armored.
Defeat 250 electric eels.
Complete the bonus mission Prospection.
Defeat 1,500 puffer fish.
Defeat 8,000 piranhas.
Unlock the submarine Resistant.
Complete the bonus mission Treasures.
Defeat 500 puffer fish.
Defeat 12,000 jellyfish.
Complete the mission Barrels.
Complete the mission Laser Artifact.
Complete a mission with all level 1 merchant deals.
Unlock the submarine Havester.
Upgrade a weapon slot to maximum level.
Complete the mission Pollution.
Defeat 2,000 piranhas.
Unlock the submarine Armored.
Unlock the trader.
Complete the mission Fissures.
Defeat 2,000 jellyfish.
Complete 1 blueprint barrel event.
Complete the mission Protection.
Complete the mission Minefield.
Level up to level 30 with the submarine Balanced.
Unlock the expeditions.
Defeat 5 starfish.
Defeat 25 starfish.
Defeat 50 starfish.
Defeat 2 sea urchins.
Defeat 12 sea urchins.
Defeat 24 sea urchins.
Obtain a legendary item.
