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