Here is the full list of all 22 The Aquatic Adventure of the Last Human trophies - there are 3 bronze, 11 silver, 7 gold and 1 platinum.
Kill the worm
You're the last human. Extinguish the human race.
Unlock All trophies
Kill the seahorses
Kill the zombie fish
Kill the octopus
Kill the anglerfish
Kill the Hammerheads
Kill the gross parasite
Kill the lobster
Kill the bloodray
Kill the flower
Complete the game
Kill the ironjelly
Kill 100 fish
Read all holotapes
Find all the upgrades
Unlock hardcore mode
Incapacitate the Tranquil
Complete Boss-rush Mode
Complete the game without any upgrade crates
Complete Hardcore mode