Here is the full list of all 21 Sundered trophies - there are 8 bronze, 4 silver, 8 gold and 1 platinum.
Acquire all trophies.
Collect 500,000 Shards.
Defeat Nyarlathotep.
Defeat Nyarlathotep & The Shining Trapezohedron.
Destroy seven Elder Shards.
Destroy your first Elder Shard.
Find all Perks.
Defeat Humanity.
Corrupt seven Abilities.
Defeat Legion & Salvation
Defeat all Minibosses.
Equip three Perks simultaneously.
Defeat Hysteria.
Unlock all Abilities.
Defeat Dominion.
Corrupt your first Ability.
Collect 10,000 Shards.
Equip your first Perk.
Defeat your first Miniboss.
Survive your first horde.
Unlock your first Ability.