9 Kings Definitive Guide: Your Kingdom-Building Roguelike Deckbuilder

Last Updated on 28 July, 2025

In 9 Kings, you draft cards each year, including units, buildings and enchantments, and then defend your capital against rival monarchs on a 3×3 grid. This article delivers proven strategies for picking your king, assembling focused decks, placing tiles for maximum buffs, managing gold and shops, and executing advanced synergies. So, follow this blueprint to outmaneuver AI and human opponents, scale through the late game and master Endless Mode.

Table of Contents

• • 1. Game Overview
  • 2. Choosing Your Monarch
  • 3. Understanding Cards & Deck-Building
  • 4. Tile Placement & Board Optimization
  • 5. Resource Management & Shops
  • 6. Battle Tactics & Combat Flow
  • 7. Advanced Strategies & Combos
  • 8. Recommended Build Archetypes
  • 9. Progression & Endless Mode
  • Conclusion

1. Game Overview

9 Kings, released in Early Access on May 23, 2025, is a turn‑based roguelike kingdom‑builder where you select from nine unique monarchs and construct a realm on a 3×3 grid using cards for troops, buildings, spells, and upgrades. Each turn involves drafting and placing a card to strategically develop your kingdom before rival kings launch automated attacks that play out in autobattler‑style combat while you control castle defenses like throwing boulders. Defeat enemies to loot cards from other kings and mix decks to craft powerful synergies, optimize gold and infrastructure, and face escalating threats through the 33‑turn campaign or endless survival mode

• Turn Structure: Draft cards → play until two remain → auto-battle → earn rewards (new cards, gold).
• Battlefield: Three horizontal floors; units on floor 1 weaken foes, floors 2 and 3 hold stronger defenses.
• Victory: Capital must not fall; enemy reaching the top-floor Capital ends the run.
• Meta-Progression: King XP unlocks Perk points; higher difficulty grants modifiers and prestige rewards.

2. Choosing Your Monarch

Your initial choice of monarch determines your starting deck, unique Capital and faction focus, so align your pick with your preferred playstyle.

3. Understanding Cards & Deck-Building

Cards in 9 Kings fall into three archetypes: units, towers/buildings and spells/enchantments. Your deck synergy hinges on combining them effectively.

1. Units: Deploy on entry floors; melee soak damage, ranged snipe priority targets.
2. Towers/Buildings: Stationary damage or buff adjacent tiles (attack, speed, health).
3. Spells/Enchantments: Global or single-target effects such as damage bursts, healing waves or stat buffs.
4. Capital: Unique to each king; functions as a powerful tower with special abilities.

Avoid bloating your deck, so aim for 12–16 cards per year and draft only those that advance your core synergy. Discard low-impact choices to maintain focus and consistency.

4. Tile Placement & Board Optimization

Your 3×3 kingdom grid rewards thoughtful placement, so maximize adjacency buffs by stacking support buildings around damage dealers.

1. Corner Capital: Place in a corner to increase distance from enemy approach paths.
2. Support Buildings: Centrally locate buff towers (Beacon, Blacksmith) for four-tile coverage.
3. Unit Positioning: Tanks on floor 1 to absorb hits, carryover stragglers weaken before defenses on floors 2 and 3.
4. Layered Defense: Let expendables die on floor 1, then consolidate power on floor 3 for holds.

5. Resource Management & Shops

Gold is scarce but vital, so invest at every shop node to upgrade units, buy cards or improve your kingdom.

1. Gold Spending: Purchase at Shrine of Fortune events and avoid hoarding above 20 gold; shops regenerate only every few turns.
2. Shop Offerings: Unit upgrades (HP/attack), spell amplifiers (double effect), special buildings and rare enchantments.
3. Perk System: King XP yields Perk points for passive boosts like +10% gold per victory, +5% unit health or extra draft cards.
4. Draft Filtering: Late-game, filter out weak and common cards in favor of rare and legendary synergies.

6. Battle Tactics & Combat Flow

Combat auto-resolves once drafting ends, so understanding the flow lets you anticipate threats and counter key units.

1. Phase Order: Yearly draft, placement phase, auto-battle, reward distribution.
2. Speed Settings: Fast-forward when you trust your build and slow it to verify critical interactions.
3. Target Priority: Use splash spells on low-HP waves and single-target on healers or buff-casters.
4. Wave Scaling: Each year increases enemy health and count; plan for mid-game spikes by saving key spells.

7. Advanced Strategies & Combos

Combine buff towers multiplicatively, leverage sacrifice synergies, gold-spawn loops and tech-rush builds to snowball your run.

1. Exponential Buff Stacking: Each +2% attack or speed stacks multiplicatively for massive DPS.
2. Sacrifice Synergies: Pair Demon’s Altar with self-damage spells for mass summons.
3. Gold-Spawn Loops: So, use Beacon networks in Greed decks to perpetually spawn buffed units.
4. Tech Rush: Chain Earthworks and level-up buildings to fast-track tower upgrades.

8. Recommended Build Archetypes

Here are three proven decks to accelerate your mastery:

Knight’s Bastion (King of Nothing)

• Core: Knights buffed by Blacksmith and Beacon for frontline durability.
• Buildings: Earthworks to unlock plots and multiple Blacksmiths for attack boosts.
• Spells: Rally Cry for global attack buff, Shield Wall on floor 3.

Gold Forge (King of Greed)

• Core: Mercenaries that heal on gold spend, buffed by Beacon chain.
• Buildings: Bank Vault increases gold per turn, multiple Beacons for speed.
• Spells: Coin Torrent for direct damage, Prosperity Aura for passive income.

Arcane Ascendancy (King of Spells)

• Core: Wizard towers with splash spells, supplemented by Arcane Library enchantments.
• Buildings: Library to draw extra spells, Mana Fountain for spell slots.
• Spells: Meteor Shower for AoE burst, Arcane Surge for repeat casts.

9. Progression & Endless Mode

Survive the 33-year campaign to unlock Endless Mode, where enemy scaling continues indefinitely. So, focus on perk optimization, legendary card acquisition and high-turn combos to push past year 100.

• Perk Optimization: Reset and reallocate perks to match your build before high Endless runs.
• Legendary Cards: Seek rare and legendary cards via shrines and boss rewards.
• High-Turn Strategy: so, lean into exponential buff combos, avoid low-impact cards and keep shops active.

Conclusion

9 Kings rewards foresight, synergy and adaptability, so master one monarch by focusing on tight deck-building, optimized placement and aggressive gold management. Likewise, anticipate combat phases, layer buffs for exponential scaling, and challenge Endless Mode as you unlock perks and rare cards. Long live your kingdom!