Here is the full list of all 32 Hero Defense trophies - there are 18 bronze, 8 silver, 5 gold and 1 platinum.
Insane Difficulty with 100% early calls
Complete the coast Guard challenge on insane.
Have at least 1 rune of every type.
Complete the Tower Defense challenge on Insane
Complete the Border Warden Challenge on insane
Have all heroes do their heroes strike at the same time.
Shoot 10 Bolts at once
Upgrade every weapon to the highest level
Kill any boss using only angry mobs
Defeat over 100 Waves in the Endless Mode.
Gather all Stars on all maps.
Defeat Count Necrosis, once and for all.
Kill a creep that is slowed, poisoned, buring, cursed, scared and cut by razor splinters.
Slow at least 20 creeps with a single attack
Charge a character to level 10
Hit at least 20 creeps with a single poison spell.
Defeat Count Necrosis
Defeat Redfang Wrathborn
Defeat Alana Nightshade
Unlock Wylde
Defeat the Queen of Corpses
Defeat Dr. Amalgam
Unlock Jane Doe
Unlock Sam Hain
Survive your first encounter with count Necrosis
Reach the Village
Defeat Bones O'Malley
Unlock Barrows
Earn every trophy.
Kill 500 Creeps using Spells
Fully upgrade the Village
Kill 50.000 Creeps