Here is the full list of all 41 Bound By Flame achievements.
Purify Vertiel by bathing it in flame
Accomplish your transformation by following the demon's way
Seduce Edwen
Accomplish all of Edwen's personal quests
Unlock all of the skills of a Ranger and their upgrades
Unlock all the the Warrior skills and their upgrades
Unlock all the Pyromancer specialization skills and their upgrades
Kill 50 enemies with an axe
Seduce Rhelmar
Accomplish all of Rhelmar's personal quests
Use the energy of the Worldheart to annihilate the Ice lords and save Vertiel
Complete Bound by Flame in the Hawk difficulty mode
Complete Bound by Flame in the Buffalo difficulty mode
Complete Bound by Flame in the Captain difficulty mode
Become the most powerful being on Vertiel
Preserve your humanity
Seduce Randval
Accomplish all of Sybil's personal quests
Poison your enemies 50 times
Vanquish Lord Blackfrost
Seduce Sybil
Set your enemies aflame 50 times
Kill 50 enemies with a warhammer
Accomplish all of Randval's personal quests
Recycle 30 objects
Make 100 objects (potions, booby-traps and munitions)
Vanquish a Concubine
Kill 50 enemies with daggers
Accomplish 20 side quests
Fire 50 crossbow bolts
Set 20 traps and have them sprung
Make 5 improvements to your weapons and armour
Vanquish a Deadwalker General.
Search 50 fallen enemies
Vanquish 150 enemies
Loot 20 chests
Vanquish 75 enemies
Vanquish a Juggernaut
Kill 50 enemies with a sword
Vanquish 25 enemies
Upgrade a skill