Full list of all 83 Shotgun King: The Final Checkmate achievements.
The base game contains 23 achievements, and there is 1 DLC pack containing 60 achievements.
Win with Castle, Kite Shield and Bodyguard
Kill The Black Bishop
Win with Zealots, Ascension and The Red Book
Kill The Red Book
Win with Ruins, Pillage and Kingly Alms
Win with Ermine Belt, Kingdom Wealth and Unjust Decree
Win with Ritual Dagger, Taunting Hop and Subtle Poison
Win with Royal Loafers, Wand of Wings and Unfaithful Steed
Win with Iron Maiden, Genderqueer and King's Mistress
Win with Two Rightful Curtsies and The Moat
Have 3 Magic Wands
Win with Genderqueer, Saboteur and The Secret Heir
Win with High Focus, Crow's Blessing and Engraved Scope
Win with The Moat, Wand of Gust and August Presence
Win with Ammunition Depot, Elite Gem and Small Fry Harvest
Win with Three Extra Barrels
Win with Sacred Crown, Majestic Censer and Courteous Jousting
Win with Militia, Assault and Pikemen
Win with Pillage, Revolution and Conscription
Win with Conclave, Cardinal and Sanctity
Win with Majestic Censer, Black Mist and Cornered Despot
Kill The White King
Have 10 black cards
Finish throne at rank 12
Finish throne at rank 11
Finish throne at rank 10
Finish throne at rank 9
Beat Throne mode without killing a queen
Win with Bloodless Coups, Peace, Philanthropy
Win with Guillotine, Cannon Fodder, Small Fry Harvest
Win with Cavalry, Kite Shield, Courteous Jousting
Finish throne at rank 8
Finish throne at rank 7
Finish throne at rank 6
Finish throne at rank 5
Finish throne at rank 4
Win with Analysis Paralysis, Sacred Crown, Black Mist
Have 6+ rooks on the board at one time
Kill an Iron Queen
Win with Royal Loafers, Cornered Despot, Unholy Call
Beat Throne mode without using a folly shield
Have 5+ queens on the board at one time
Activating black mist 9 times
Win with A Piercing Truth, Blunderbuss, Welcome Gift
Beat Throne mode in less than 2 minutes
Win with Throne Room, Kingdom Wealth, Castle
Win with Cavalry, Lookout Tower, Conclave
Win with Nightbane, Bushido, Ritual Dagger
Win with Bushido, Caltrops, Taunting Hop
Finish throne at rank 3
Destroy the last leader and the black king with a grenade
Finish throne at rank 2
Kill the white king by throwing his heir at him
Beat throne mode with this shotgun
Beat Throne mode in less than 5 minutes
Be threatened by 4 pieces at once
Have an arc of 120 or higher
Get eaten by the white king
Beat Throne mode without letting a pawn promote
Have a firepower equal to 1
Have 20+ ammo
Make a rook save the king from a flying piece
Have 2 knights, 2 rooks, 2 bishops, 1 queen, 1 king, and 8 pawns on the enemy field
Push a piece out of the moat
Have more ammo in your clip than in your max reserves
Get killed by your own grenade
Grab the queen and carry her to the square you start the round on
Finish a floor by turn 6
Finish a floor moving only with souls
Finish throne at rank 1
Kill the white king by hopping on him
Finish a floor without killing any non-leader piece
Finish a floor without killing any pawn
Finish a floor without moving to a white tile
Win with Court of the King, Court of the King, Full Plate Armor
Win with Highest Dungeon, Cathedral, Trowel
Finish throne at rank 13
Finish throne at rank 14
Finish throne at rank 15