9 Kings: King of Greed Infinite Gold and Portal Strategy

To win with the King of Greed in 9 Kings, stabilize your defense during the opening rounds, then trigger an exponential economy by continuously spending gold in the drafting shop to outpace purchase costs. Reinvest the compounding returns into continuous shop refreshes, paired Portal structures, and deck thinning. Route your army directly from spawn tiles through spatial rifts to bypass defensive choke points and flank enemy forces from behind.

Scaling the Spend-to-Earn Passive Economy

The King of Greed replaces standard round interest with a spend-to-earn mechanic where drafting expenditures generate compounding currency refunds. Hoarding gold halts your resource generation. Every purchase—including unit recruitment, structure cards, and shop rerolls—contributes to an increasing economic payout.

1. Survive early waves conservatively: During the first two to three rounds, spend only enough gold to secure essential frontline defenders. Emptying your reserves completely before unlocking higher cashback scaling can leave your castle defenseless against early rushes.
2. Identify the reinvestment threshold: Once the refund value from a single purchase surpasses standard card costs, stop saving.
3. Execute continuous shop rerolls: Spend aggressively during every preparation phase. Because high-volume purchasing generates more gold than it consumes once scaled, shop refreshes create a self-sustaining funding loop for elite units and buildings.

Shop Drafting Priorities Under High Wealth

Once your cashback exceeds card prices, shift your draft focus from budget survival options to high-stat board anchors, transit structures, and deck refinement.

Avoid settling for low-impact stat boosters. Use your surplus currency to roll repeatedly until you secure Portal cards and premium combat units, while removing weak starter cards to keep your active draw pool lean.

Setting Up Portal Loops and Board Routing

Portals transport any allied unit that steps onto an entrance tile directly to the linked exit tile across the board. Proper grid placement prevents traffic jams and maximizes flank damage.

• Entrance placement: Place entrance portals directly adjacent to your primary unit spawn hexes. If infantry must walk across several empty tiles before entering, your formation loses the initiative.
• Exit placement: Place exit portals along the lateral grid edges facing the rear half of the battlefield. Emerging behind oncoming formations disrupts enemy targeting, exposes ranged backlines, and draws hostile units away from your castle walls.
• Perimeter clearance: Keep hexes surrounding the exit portal clear of obstacles and structures. High unit throughput requires open landing space; congested exits create bottlenecks that leave arriving troops vulnerable to area-of-effect damage.

Overcoming Late-Game Space and Timer Bottlenecks

Unlimited gold does not expand the physical dimensions of your territory or lengthen the preparation phase. Manage these constraints directly to avoid sudden wave losses:

• Consolidate board tiles: Finite grid space makes weak starter units a liability in late rounds. Sell obsolete low-tier units and replace them with consolidated, elite combat cards that maximize the combat value of each hex.
• Draft against the turn timer: Because drafting phases have strict time limits, make purchase decisions rapidly. Buy priority deck removals and portal upgrades first, lock in key frontline units, and confirm transit pathways are clear before the preparation timer expires.