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