Player field manual // Gameplay

9 Kings Cards: Plot Upgrades and Card Acquisition

Learn how cards work in 9 Kings, from matching-copy plot upgrades and merchant purchases to card types, placement effects and ways to reuse your hand.

Updated

01

How Cards and Plot Upgrades Work

Place troop, tower and building cards on empty plots, then play matching duplicates onto those plots to upgrade them. Get additional cards from defeated kings and merchants, and use enchantments, tomes and adjacent support effects to strengthen the kingdom you have built.

The complete card index lets you filter documented cards by king and compare their names, types, effects and available level data. It includes Rainbow, Chaos and derived entries alongside ordinary deck cards.

02

King Cards, Effects and Acquisition

Your chosen king supplies a starting deck; defeating rival kings gives access to their deck cards. In the tables, “Deck / loot” refers to those routes, while starting bases belong to the king you select.

CardKing or PoolTypeEffect or InteractionHow to Get It
CastleNothingBaseAttacks with boulders.Starting king
SoldierNothingTroopGains damage as units join its troop.Deck / loot
ArcherNothingTroopFast ranged attacks; gains 9 units per level.Deck / loot
PaladinNothingTroopDamage buffs also increase HP.Deck / loot
Scout TowerNothingTowerProjectile count increases with level.Deck / loot
FarmNothingBuildingAdds units to an adjacent troop each year.Deck / loot
BlacksmithNothingBuildingAdjacent plots gain +2% damage yearly.Deck / loot
Steel CoatNothingEnchantmentEach stack cancels an opening hit each battle.Deck / loot; merchant offers
WildcardNothing—Can be spent on Castle levels.Development decree; Benevolent perk
CitadelSpellsBaseHelps fight while your Wizards develop.Starting king
WizardSpellsTroopGains +5% damage per enchantment carried.Deck / loot
WarlockSpellsTroopGains +5% HP whenever a tome is used.Deck / loot
ShamanSpells——Deck / loot
SpireSpellsTowerHeals units closest to death.Deck / loot
LibrarySpellsBuildingYearly 50% chance to copy an adjacent troop’s enchantment.Deck / loot
StaticSpellsEnchantmentAdds chain lightning to attacks.Deck / loot; merchant offers
CombustionSpells—Provides area damage.Deck / loot
OfferingSpellsTomeWorks with the Pillage decree.Deck / loot
TempestSpells—Formerly named Static Fields.—
AbrakadabraSpells—Its frogs wander instead of marching toward your base.—
PalaceGreedBase—Starting king
MercenaryGreedTroopMaintains a unit for every 9 gold held.Deck / loot
VaultGreedBuildingPays 3 gold per level yearly and levels automatically.Deck / loot; merchant offers
DispenserGreedTowerAttack speed grows as you earn gold.Deck / loot
BeaconGreedBuildingBuffs adjacent attack and movement speed yearly.Deck / loot; merchant offers
Midas TouchGreed——Deck / loot
Over-investGreedTomeCosts 30 gold for +15% to every plot stat.Deck / loot
Mortgage————
PagodaBloodBaseSummons invincible Ghosts; permanent troop destruction raises their count.Starting king
ImpBloodTroopFast minions that can feed an adjacent Mangler.Deck / loot
BomberBloodTroopRushes enemies and explodes for area damage.Deck / loot
CemeteryBlood—Destroyed adjacent troop plots leave a Skeleton plot.Deck / loot
Demon AltarBloodTowerSummons demons and grows stronger from allied deaths.Deck / loot
ManglerBloodTowerSummons meat trolls; consumes adjacent units for permanent damage and HP.Deck / loot
SacrificeBlood—Can destroy troops beside Pagoda to raise its level.Deck / loot
OblationBloodTomeThrow into the pit to add units; pit discards strengthen its effect.Deck / loot
CarnageBlood—Affected troops explode when killed.Deck / loot
TreantNatureBaseCreates a field that heals allies and damages enemies.Starting king
ElfNatureTroopAlways shoots the most distant target.Deck / loot
BoarNatureTroopAdjacent troops mount it and gain stats from its HP.Deck / loot
ForestNatureBuildingAdjacent plots gain +2% HP yearly.Deck / loot
MyceliumNatureTowerAccumulates fighting spores across battles.Deck / loot
Orchard——Its tooltip includes a stun stat.—
ProcreateNature—Adds 9 units to the target troop.Deck / loot
CloneNature—Duplicates cards; Codex returns Broken Codex.Deck / loot
Poison Vial——Gives troops 3 poison stacks.—
StrongholdStoneBaseSummoned towers shoot nearby enemies.Starting king
WallmakerStoneBuildingBuilds walls; gains +10% HP yearly.Deck / loot; Impervious perk
BallistaStoneTroopFires piercing bolts; walls stop its projectiles.Deck / loot
TrebuchetStone—Projectiles deal area damage.Deck / loot
FlametowerStoneTowerCan attack enemy walls.Deck / loot
TrapperStoneTroopPlaces damaging traps that stun enemies.Deck / loot
CauldronStoneBuildingAdjacent attacks apply 3 poison stacks per level.Deck / loot; merchant offers
EarthworksStoneTomeUnlocks adjacent plots and returns up to 3 target copies.Deck / loot
Regression——Lowers a plot’s level while retaining its gains.—
MothershipProgressBaseMovement speed increases when levelled.Starting king
Lab RatProgressTroopUncapped normal levels; adjacent level-ups trigger its own.Deck / loot
DefenderProgressTroopDoes not attack; reflects damage taken.Deck / loot
ExecutionerProgressTroopRanged fighter targeting the lowest-health enemy.Deck / loot
RecyclerProgressBuildingPit discards give adjacent plots +2% damage and HP per level.Deck / loot
ConcabulatorProgressBuildingReaching level 3 levels up the kingdom.Deck / loot
Converter—TowerTurns enemies into allied rats inheriting its stats.Merchant offers
OverhaulProgressTomeDestroys a target to level random plots; repeated use increases the effect.Deck / loot
ReinforceProgress—Heals 2% HP per second in battle, beyond maximum HP.Deck / loot
WarlordNomadsBase / troopShoots banners that add its stats to allied targets.Starting king
MobNomadsTroopGains units when a different adjacent card gains them.Deck / loot
RaptorNomads—Can carry Warper riders.—
Dragon DenNomadsTowerSummons single-strike dragons; grows when plots are destroyed.Deck / loot
CampNomadsBuildingEmpty-plot placements give adjacent plots +2% to all stats.Deck / loot; merchant offers
MigrationNomadsTomeMoves to an empty adjacent plot; grants +10% damage and HP.Deck / loot; Immigrant perk
Razing——Works with Pillage and Explorer.—
BastionTimeBaseDamaging rifts warp enemies to the backline.Starting king
HourglassTimeTowerCharges slowly before releasing a massive explosion.Deck / loot; merchant offers
OrbiterTimeTroopCopies enchantments received by adjacent plots.Deck / loot
WarperTimeTroopSummons melee units with half its stats.Deck / loot
PortalTimeBuildingAt maximum level, sends the kingdom 2 years back.Deck / loot; merchant offers
AmplifierTimeBuildingPasses received buffs to adjacent plots; levels increase its reach.Deck / loot; merchant offers
RewindTimeTomeThrow into the pit to replace your hand with recently played cards.Deck / loot; merchant offers
Adrenaline———Brutal applies a starting stack to troops.
Osmosis——Grants +30% to all stats.Merchant offers
03

Rainbow and Other Special Cards

Defeating the Rainbow Army offers special cards, and Rainbow cards can also appear in shops. Their availability makes them opportunities to adapt your kingdom rather than pieces to assume you will draw.

CardPoolTypeEffect or InteractionHow to Get It
DwarfRainbowTroopMoves yearly; unlocking a plot grants +50% to all stats.Rainbow rewards / shops
CodexRainbowBuildingReturns copies of a tome used on it, then self-destructs.Rainbow rewards / shops
WarehouseRainbowBuildingRepeats adjacent support-building effects.Rainbow rewards / shops
SurgeRainbowTomeTriggers a target support building 9 times.Rainbow rewards / shops
ExtractionRainbowTomeDestroys a plot and gives 5 copies of it.Rainbow rewards / shops
PrecisionRainbowEnchantmentFirst-hit damage increases by +100% per stack.Rainbow rewards / shops
GolemRainbowTroopTomes used on it have double effect.Rainbow rewards / shops
RandomfyRainbowTomeChanges the card to another of its type, doubling current stats.Rainbow rewards / shops
PatronageRainbow—Adds 3 base levels beyond the normal cap.Rainbow rewards / shops
ShrineRainbowBuildingLevels a random plot yearly.Rainbow rewards / shops
TempleRainbowBuildingAdds 9% to a random plot stat yearly.Rainbow rewards / shops
X-RayRainbow—Can level plots beyond their maximum.Rainbow rewards / shops
EchoformRainbow——Rainbow rewards / shops
GigantifyRainbow——Rainbow rewards / shops
SlimeRainbow——Rainbow rewards / shops
ReflectorRainbow——Rainbow rewards / shops
ReactorRainbow——Rainbow rewards / shops
FactoryRainbow—Does not trigger between multiplayer final showdown battles.Rainbow rewards / shops
LeechRainbow——Rainbow rewards / shops
Great HallRainbow——Rainbow rewards / shops
SingularityRainbow——Rainbow rewards / shops
AccumulatorRainbow—Golem triggers its effect twice.Rainbow rewards / shops
MantraRainbow——Rainbow rewards / shops
HoundRainbow——Rainbow rewards / shops
Balance——Equalizes HP and damage to the higher value.—
Catharsis————
Unify————
Obelisk————
Ogre—TroopEmpty-plot buffs also count locked plots.—
Doomstower—TowerIts ray deals area damage.—
Smite—Enchantment——
Swords————
Shields——Can be applied to Manglers.—
Transmutation——A troop beside a Cemetery becomes an Imp.—
Chaos OblationChaosTomePit use grants +3 units per card discarded into the pit.—
Chaos SacrificeChaos—Adds sacrificed cards’ damage and HP to adjacent plots.—
Chaos EarthworksChaos—Combines surrounding Vault levels into a target plot.—
Chaos OfferingChaos—Works with the Pillage decree.—
Chaos MortgageChaos—Works with the Pillage decree.—
Chaos SwordsChaos———
Chaos ShieldsChaos———
Broken CabulatorsDerivedTrash——
Temp NullsDerivedTrash——
Broken GachasDerivedTrash——
Spare Change—Trash——
Bone PileDerivedTrash—Rewind returns it instead of a Skeleton card.
Pile of Bones——Beside a Cemetery, creates Skeletons inheriting its stats.Blighted grants it when placing a Cemetery.
Broken CodexDerived——Use Clone or Earthworks on Codex.
SkeletonDerivedTroopA Pile of Bones can inherit Cemetery stats.Cemetery destruction interaction or adjacent Pile of Bones.
04

Place Cards and Upgrade the Right Plot

  1. Choose an empty plot for a troop, tower or building. Before committing a support building, check which neighbours you want its effect to reach.
  2. Hold a matching duplicate over the occupied plot to preview the stats or effects that the upgrade will increase. Use that preview to decide whether upgrading is more useful than placing another copy elsewhere.
  3. Check the plot’s cap before spending a duplicate. Most plots have three levels, while Lab Rat has no normal level cap; effects such as Patronage can also push a base beyond its usual limit.
  4. Read the current tooltip after perks and decrees apply. Card descriptions reflect relevant modifiers, and hovering an enchantment icon shows what that enchantment does.
05

Get Cards From Loot, Merchants and the Pit

Choose rival kings with cards your kingdom can use: defeating them opens access to their decks. At merchants, the first card costs 30 gold and each subsequent purchase costs 15 more. Discarding an unwanted hand card into the pit gives 9 gold.

Spending has an immediate cost for a Mercenary army because its unit count follows your current treasury. Compare a shop purchase with the army size you will lose before paying. Rare Goods changes shop availability by guaranteeing a Rainbow card for sale.

Use the Compendium to inspect card stats and revisit Rainbow or Chaos cards you have already used. Joker Mode offers another way to experiment: unlock all kings to access its custom deck and rule settings.

06

Read Adjacency Before Filling the Board

Troops move and fight, towers attack or produce battle effects, and buildings support plots. Enchantments stack on troops, while tomes apply effects to occupied plots. Those distinctions matter when an effect names a particular target type.

Keep important troops beside the buildings meant to strengthen them. A Blacksmith helps Paladins gain damage and HP together; Forests beside Boars raise the HP that powers their riders. Libraries need an adjacent troop with an enchantment already available to copy.

Empty plots can also be useful. Camp rewards cards landing on them, and Migration needs an empty adjacent destination. Filling every space can therefore block the movement or repeated placements your kingdom depends on.

07

Reuse Cards Without Following Old Exploits

Earthworks can return up to 3 copies of a plot’s cards, making a self-levelling Vault useful for repeated placements. Codex is an important exception: Clone or Earthworks returns Broken Codex. Rewind replaces your hand with recently played cards, so consider what you play before discarding it.

For the PC full release, use Oblation in place of the older Vampirism card. Recycler replaced Precision in the Progress deck, while Precision returned separately as a Rainbow enchantment. Dragon Den is the current name of Dragon’s Den.

Regression cannot target level 1 plots, and Golem triggers Accumulator twice. Factory does not activate between multiplayer final showdown battles. Keep those specific restrictions in mind when comparing a current run with an older combo.

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