Here is the full list of all 12 Zenith trophies - there are 7 bronze, 4 silver and 1 gold.
Recover the artefact
Save the Skree
Defeat the lava demon.
Find Brekka
We need to protect the pure!
Finish the game
Destroy 50 barrels
Destroy 100 barrels
Defeat 25 enemies
Defeat 50 enemies
Defeat 100 enemies
Defeat 500 enemies