Here is the full list of all 16 Zenith: The Last City trophies - there are 2 bronze, 3 silver, 10 gold and 1 platinum.
You started as a humble Agent of Zenith, a new recruit. But your tenacity and drive took you from zero to hero. From the shining skyscrapers of Zenith City to the towering trees of the Amarite Forest, from the rustic Mountain Highlands to the sunny shores of the Radiant Coast, you made sure everyone was safe from The Corruption… and you did it with style. You have truly grown into a Zenithean Hero for the ages!
Learn how to use your essence in the Zenith Academy.
Investigate the Exiled presence in the Fractured Plains.
Rescue your former teacher from the Outlaw Grove.
Search for the Khiren Amarites
Cleanse the Khiren’s sacred stones
Rescue the Khiren spies from the Rivu camps
Investigate the cultists in the Mountain Town
Search for the Artifact in the Reliquary
Cleanse the Storm Crystals in the Radiant Coast and begin the search for the Primal Artifact
Kill the Pirate King and search for the Wardkey
Cleanse the Primal Artifact in the Shrine of the Sea
Destroy the foundries in the Wasteland
Free the Emerald Oasis from corruption
Find the Wardkey that grants access to the Mausoleum
Place the Wardkey on the pedestal on the flying fortress to unlock the Mausoleum