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