SFK Guide
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Units Unlock Database
Find unlock conditions and roles for every unit. Never miss a powerful ally.
Abomination
Tank
Human
Physical
Have 15 gold deposits in your city
Angel
Damage
Undead
Physical
Have 99 faith
Archer
Damage
Human
Physical
Always unlocked
Banshee
Support
Human
Magic
Survive 21 days without a house
Bard
Support
Undead
Magic
Fully upgrade the tavern
Bee
Damage
Undead
Physical
Field 5 summoner units
Berserk
Damage
Undead
Physical
Be Brave
Clown
Damage
Human
Physical
Defeat the first boss
Colossus
Tank
Undead
Physical
Defeat the ultimate evil in the Undead Kingdom
Crossbowman
Damage
Undead
Physical
Lose
Cyclops
Damage
Human
Physical
Always Unlocked
Dancer
Damage
Undead
Physical
Survive 14 days without a house
Deathpriest
Support
Human
Magic
Die
Devil
Tank
Human
Physical
Kill 666 monster on one day
Dinosaur
Tank
Human
Physical
Have 25 animals in your city
Djinn
Damage
Human
Magic
Start the voyage and be lucky
Druid
Support
Undead
Physical
Have 50 rats in your city
Dryad
Damage
Undead
Magic
Have 30 Thickets in your city
Flame Walker
Tank
Undead
Physical
Defeat the fourth boss in the Undead Kingdom
Frost Mage
Damage
Undead
Magic
Complete all stages of a quest
Ghost
Support
Human
Magic
Bury a unit
Ghoul
Support
Human
Physical
Build train tracks with a length of at least 33 tiles
Gremlin
Damage
Human
Physical
Be Greedy
Griffin
Support
Undead
Physical
Field 4 airborn units
Halfling
Support
Undead
Physical
Have 33 pumpkins in your city
Headless
Damage
Human
Magic
Have 30 fields in your city
Jailer
Damage
Human
Physical
Let units go hungry 99 times in one run
Jester
Support
Human
Physical
Be funny
Jouster
Support
Undead
Physical
Have no graves in your city on day 21
Leech Mother
Support
Human
Physical
Have 30 thickets in your city
Lich
Support
Human
Magic
Sacrifice a unit
Magus
Support
Undead
Magic
Build sewage channels with a length of at least 66 tiles
Marksman
Damage
Undead
Physical
Have 25 bloats in your city
Mechanic
Damage
Undead
Physical
Have all types of Undead siege engines
Miner
Damage
Undead
Physical
Defeat the first boss in the Undead Kingdom
Monk
Damage
Undead
Magic
Have 21 graves in your city
Observer
Damage
Human
Magic
Clear any dungeon
Paladin
Damage
Undead
Physical
Have 15 carriers
Pixie
Support
Undead
Magic
Die a peaceful Death
Psion
Support
Human
Magic
Defeat the ultimate evil
Rogue
Damage
Human
Physical
Defeat the fourth boss
Runescribe
Damage
Human
Magic
Always Unlocked
Satyr
Support
Undead
Physical
Have 17 potions
Shaman
Tank
Human
Magic
Defeat the second boss
Shroom
Support
Human
Magic
Field 5 mage units
Stormcaller
Damage
Human
Magic
Have 20 trees in your city
Succubus
Support
Human
Physical
Have 10 workers
Swordsman
Tank
Undead
Physical
Have a wall with at least 250 Hit Points
Treant
Support
Undead
Physical
Have 15 bonepiles in your city
Troll
Tank
Human
Physical
Survive 14 days without a quarry
Vampire
Tank
Human
Physical
Fully upgrade the castle and walls before day 7
Werewolf
Damage
Human
Physical
Be kind
Yeti
Tank
Human
Physical
Have 5 destroyed Palisades