Archer Castle Second Star Hill Guide: Base Layout and Upgrades

To stabilize your fortress during the Second Star Hill stage in Archer Castle, spend your gold on core main tower structural upgrades before leveling secondary heroes. Upgrading your primary fortress wall increases your health buffer, giving long-range units enough time to clear high-density enemy waves. Once you reach this evolution, adjust your hero positioning to fit the new hill angles.

Core Fortress Upgrade Priorities

Investing gold in the main castle structure is the most reliable way to survive the second star milestone. Spreading wealth across low-level hero upgrades early in this transition weakens your overall defensive wall.

• Main Tower Durability: Funnel gold into main tower health upgrades so your fortress can withstand damage spikes from rapidly scaling waves.
• Frontline Buffer Zone: Maintain fortress wall health to stop incoming mobs before they reach your primary gate.
• Targeted Resource Allocation: Postpone secondary hero leveling until your tower structural health comfortably matches incoming wave difficulty.

Optimal Unit Placement for Hill Defense

The second star evolution alters line-of-sight angles across the stage layout. Reposition your units across three key zones to cover newly exposed firing vectors:

1. Hill Base: Position tank-oriented heroes at the bottom of the slope to block incoming enemies before they reach your main gate.
2. Elevated Positions: Place your highest single-target DPS archers on the upper sections of the castle to extend their effective firing arc across the stage.
3. Incline Bottleneck: Deploy area-of-effect (AoE) heroes along the middle slope to weaken and slow down swarms as they climb the hill.

Wave Farming and Defensive Adjustments

After establishing your second star layout, shift focus toward farming high-density waves to maximize gold gain per session.

• Active Skill Management: Reserve mana-heavy defensive spells for dense enemy pushes instead of relying on frequent active casting.
• Flank Awareness: Monitor side tower health bars during late waves to prevent enemy units from bypassing your central hill defense.
• Stat-Boosting Accessories: Equip gear items that increase projectile speed or fortress health whenever wave progression slows down.