Here is the full list of all 21 Chasm trophies - there are 7 bronze, 5 silver, 8 gold and 1 platinum.
You have fulfilled the prophecy of the Watchers.
Complete the game as a Mortal.
Complete all villager sidequests.
Complete the game on Hard difficulty.
Defeat Ulak.
Unlock all the Bestiary entries.
Explore 100% of the map.
Break all the crates in the game.
Find all the Journal Entries in the game.
Defeat the Shaman.
Spend 5,000 gold.
Rescue all the missing villagers.
Find all the Powerups in the game.
Defeat King Trell.
Become the Arena champion.
Defeat 1,000 enemies.
Defeat the Golem.
Defeat the Catakiller.
Defeat a boss without getting hit.
Defeat the Wendigo.
Defeat 100 enemies.