Kings

When a new game is started only the King of Nothing will be available. Other kings can be unlocked by reaching various milestones while playing. Progress towards unlocking each king carries over between runs. Each king has 9 cards, 9 perks, and its own game background music.

King	Cards	Royal Decrees	Requirements
King of Nothing	Castle Archer Paladin Soldier Scout Tower Blacksmith Farm Steel Coat Wildcard	Only common ones
King of Blood	Pagoda Bomber Imp Mangler Cemetery Demon's Altar Carnage Vampirism Sacrifice	Covenant Embalming Evil Pact Fireworks Transmutation	Kill 9999 enemy units
King of Greed	Palace Thief Mercenary Dispenser Beacon Vault Midas Touch Over-invest	Bargain Burglary Insurance Salvage Scimitars	Spend 999 gold
King of Nature	Treant Boar Elf Orchard Forest Mycelium Poison Vial Clone Procreate	Fertility Nettle Populate Revitalize Wilderness	Win 9 games
King of Progress	Mothership Defender Executioner Lab Rat Converter Concabulator Precision Reinforce Overhaul	Frankensteinian Gentrify Scopes Splicing Ultragravity	Level up 99 plots
King of Spells	Citadel Shaman Warlock Wizard Spire Library Combustion Static Offering	Abracadabra Glass Staffs Re-enchant Spiremania Static Fields	Use 9 spells
King of Stone	Stronghold Ballista Trapper Flamethrower Trebuchet Cauldron Quarry Wallmaker Earthworks	Barricade Dynamites Engineering Towerdome	Level up 99 plots