9 Kings: Slime Build and Treasure Update Strategy Guide

Win with a Slime-focused build in 9 Kings by saturating your board with low-cost replicating units, pairing disposable front-line Slimes with death-triggered relics from the Treasure Update, and rerolling the shop aggressively to maintain unit volume.

Core Slime Replication Mechanics

The Slime strategy scales through unit volume rather than relying on a few high-damage individual units. To establish early momentum, place your initial Slimes to maximize adjacency bonuses, which increases how frequently they replicate during combat resolution.

Keep non-slime units off your board during the opening stages. Limiting early unit variety keeps your active pool focused, raising the odds of finding extra Slimes during shop rotations. Forcing your opponent to trade inefficiently against a crowded board eventually collapses their defensive lines.

Treasure Update Item Synergies

The Treasure Update adds relics and chests that turn high unit counts into passive power and resource engines. Prioritize items that specifically target "Swarm", "Replicating", or "Slime" units.

• Death Triggers: Select items that grant health regeneration or stat buffs whenever a friendly unit dies.
• Attack Speed Buffs: Flat attack speed upgrades scale exceptionally well across dozens of low-cost units.
• Board-Count Scaling: Acquire relics that award gold or experience based on total units deployed, funding continuous shop refreshes.

Always verify that generic buffs apply to your specific swarm type, as specialized Slime and replication relics yield higher stat efficiency.

Board Saturation and Merging

While swarming is the primary objective, filling every tile with low-tier units creates a board bottleneck. Manage capacity limits to maintain scaling power:

1. Merge Lower Tiers: Combine matching Slimes strategically to free board slots for higher-tier units with area-of-effect debuffs.
2. Mix Utility with Damage: Retain a balance of primary damage Slimes alongside crowd-control Slimes to disrupt enemy lines.
3. Prune Stagnant Units: Sacrifice low-value units whenever total board damage stalls, creating room for high-tier spawns or key relic drops.

Front-Line Sacrifice and Positioning

Position weaker Slimes directly in the front line to absorb initial damage and shield core units. Because late-game Treasure Update items trigger upon unit death, placing weak units in high-risk zones creates a steady loop of combat buffs and resource generation.

As front-line Slimes fall, death triggers grant stacking bonuses to your surviving units while replication effects continuously replenish your numbers. This cycle allows Slime armies to outlast opponents in prolonged battles.

Mid-Game Economy and Shop Rerolls

Transitioning into the mid-game requires strict gold management focused on targeted shop rolls:

• Stop Generic Upgrades: Divert gold away from non-essential unit upgrades and reserve it for shop rerolls to find rare Slimes and high-tier relics.
• Prioritize Survivability: If your core Slime engine is established, focus rerolls on defensive utility items so your army survives initial bursts.
• Bank Win-Streak Income: When winning consistently, build up gold reserves to survive potential late-game pivots or heavy area-of-effect damage counters.