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