Castle Busters: Siege Unit Deployment and Foundation Targeting

To collapse enemy keeps efficiently in Castle Busters, fire heavy-damage breaching units directly at the bottom-most tiles supporting the structure, then stagger fast-firing projectiles into the newly exposed interior gaps. Stripping foundational support removes physical backing from higher castle blocks, forcing large sections to collapse under their own weight.

Targeting Base Foundations and Structural Weak Points

Focus initial attacks on the lowest support blocks and poorly connected vertical pillars rather than chipping away at high, reinforced sections. Removing lower tiles strips structural support from the entire building above, creating much larger collapses per shot.

Before firing, inspect the enemy fortification for specific structural targets:

• Bottom Tiles: Strike the ground-level foundation first to maximize overall building failure.
• Pillars and Overhangs: Target unreinforced high-density structures connected to weak support nodes.
• Material Matching: Align your unit's damage type with the enemy's building material (such as stone versus wood) as indicated on your roster to minimize the shots needed for a breach.

Sequencing Unit Roles During a Siege

Layer attack types in a clear three-phase sequence to maintain constant stress on the enemy base structure:

1. Initial Breaching: Deploy heavy-damage units first to shatter the outer wall and crack foundational supports.
2. Persistent Pressure: Follow up with fast-firing units to keep the structure vibrating and prevent it from settling back into a stable state.
3. Targeted Cleanup: Use high-precision units to destroy remaining support nodes after the main collapse.

Managing Deployment Intervals and Physics Triggers

Avoid releasing all squad units simultaneously. Bombarding a structure all at once can overload the physics engine with debris, leading to unpredictable movement or missed opportunities against exposed weak points.

Stagger projectile releases and pause heavy bombardment briefly whenever the enemy keep begins to wobble or shift. Pausing gives the physics engine time to compute structural movement, allowing full collapses to resolve naturally before you resume targeted fire.