Full list of all 64 The Last Spell achievements.
The base game contains 56 achievements, and there is 1 DLC pack containing 8 achievements.
Break Gildenberg's Seal
Break Lakeburg's Seal
Break Glenwald's Seal
Break Elderlicht's Seal
Break the Last Seal
Unlock all weapon types
Unlock your first favor with a goddess
Have Schaden reveal herself to you
Have Freude reveal herself to you
Build your first Inn
Build your first Seer
Build all buildings types at least once
Break Seals with at least 50 different Omens
Get 6 heroes in your team
Get 12 Workers in your Haven
Break a Seal without the City Panic going under A rank
Use 500 mana in one run
Sell an Epic item
Push back the Fog at its minimum with the Seer
Have 40 active traps at the beginning of a night
Produce 40 items with your production buildings in a single run
Build 60 Reinforced Stone Walls in one run
Build 20 Ballistas in one run
Build 10 Catapults in one run
Poison 400 enemies in one run
Stun 50 enemies in one night
Inflict a critical hit on 20 enemies in one Heroes' turn
Have a Hero or building reach 12 enemies in a single blow
Have a Hero kill 200 isolated enemies in one run
Kill 300 enemies affected by negative alterations in one run
Have a hero perform a Momentum attack with maximum bonus
Kill an enemy with the Punch skill
Use the Fatality skill on an Elite enemy
Have a Hero use a potion on another Hero
Kill 6666 enemies
Use potions 100 times
Use scrolls 50 times
Start 20 runs
Scavenge 50 Ruins and Corpses
Reach night 3 at Apocalypse 1 in any city (without Boundless Mode activated)
Break a Seal at Apocalypse 1 in any city (without Boundless Mode activated)
Break a Seal at Apocalypse 6 in any city (without Boundless Mode activated)
Break Gildenberg's Seal at Apocalypse 3 or more (without Boundless Mode activated)
Break Lakeburg's Seal at Apocalypse 3 or more (without Boundless Mode activated)
Break Glenwald's Seal at Apocalypse 3 or more (without Boundless Mode activated)
Break Elderlicht's Seal at Apocalypse 3 or more (without Boundless Mode activated)
You've become the Eon of War
Have a Hero hit their friend
Customize a Hero
End a night with the City Panic at its maximum
Reroll the available Heroes in the Inn
Have a Hero kill an enemy 14 tiles away
Fight a boss for the second time
Kill two thirds of the Dryads during the final night of Glenwald
Have a Hero reach 0 mana
Break Glintfein's Seal at Apocalypse 3 or more (without Boundless Mode activated)