Dome Keeper: Defective Weapon Challenge Guide

To beat the Defective Weapon challenge in Dome Keeper, shift your strategy away from direct weapon scaling and rely on dome damage mitigation, fast mining, and automated defensive gadgets. The challenge penalizes your primary weapon with reduced damage, sluggish tracking, and strict heat or reload limits. Because your turret cannot eliminate incoming waves before they reach the perimeter, survival depends on absorbing predictable melee hits while eliminating high-damage ranged attackers.

Early Mining and Upgrade Priority

Do not spend early Iron on weapon damage upgrades. The challenge's built-in penalties reduce the value of raw turret firepower, making early weapon investments an inefficient use of resources. Dig a vertical shaft directly beneath the dome and invest your first hauls into mobility and extraction tools.

Follow this spending sequence during the opening cycles:

1. Cycles 1–2: Buy Player Speed Lv 1 and Carry Capacity Lv 1. Hauling 4 to 6 Iron chunks back per trip prevents lost production time before the first waves arrive.
2. Cycles 3–4: Buy Drill Lv 1 once you hit the first layer of hardened rock to keep horizontal tunneling fast.
3. Mid-Game Transition: Allocate surplus Iron toward Dome Health and repair supplies rather than primary weapon upgrades.

When the defensive siren sounds, immediately drop any extra resource chunks that reduce your speed below base movement speed and return to the dome.

Dome Reinforcement and Shield Mitigation

Because enemies will inevitably reach your structure, spend your early Cobalt to reinforce the dome rather than purchasing optional utility tech.

• Dome Hardening: Prioritize hardening early to reduce flat damage from standard ground attackers. This turns dangerous melee strikes into manageable chip damage.
• Shield Cooldown and Overcharge: If using the Shield dome, prioritize cooldown recovery and Shield Overcharge over raw shield capacity. A fast recharge cycle absorbs recurring blows across drawn-out waves.

Secondary Gadgets to Offset Weapon Penalties

Locating and activating gadget chambers underground provides the supplemental firepower needed in later cycles. Choose automated utilities that function independently of your impaired primary weapon:

• Stun Laser: Freezes high-threat aerial targets and heavy ground units, buying time for your low-damage weapon to finish them.
• Combat Drones and Blast Ore: Provide passive offensive coverage to thin out crowds without generating weapon heat.
• Orchard: Prioritize shield-enhancing and movement-boosting fruits to maintain mobility while digging and sustain defensive buffs during combat.

Target Prioritization During Combat

Firing continuously will quickly trigger weapon overheat or exhaust your reload cycle. Fire in measured bursts and target enemies in this order:

1. Ranged Artillery and Spitters: Eliminate these units immediately. Their projectiles inflict heavy damage from a distance and bypass melee mitigation.
2. Fast Aerial Dive-Bombers: Destroy flying attackers before they crash into the dome.
3. Ground Melee Crawlers: Allow basic ground units to strike your hardened dome while you focus your turret on ranged threats. Clear remaining melee enemies with controlled single bursts once high-damage threats are dead.