Dome Keeper: How to Beat Brutal Monsters with the Infiltrator

To beat the Brutal Monsters assignment with the Infiltrator in Dome Keeper, you must offset tighter wave timers by carving straight vertical shafts, maintaining momentum with grapple swings, and investing early iron into weapon damage rather than late-game tech. Surviving the early wave scaling requires rapid round trips and strict target prioritization at the dome console.

Optimize Mining Shafts for Infiltrator Mobility

The Infiltrator replaces standard slow ascents with physics-based grappling and wall jumps. Because the Brutal Monsters assignment gives you narrow time windows between enemy spawns, travel efficiency determines how much ore you can extract before returning to defend.

• Dig vertical drop chutes: Avoid jagged, winding corridors. Carve straight vertical shafts directly beneath the dome so you can anchor your grapple and fling upward without getting caught on ledges.
• Preserve inertia with ceiling swings: Latch the grappling hook into upper wall corners and jump at the peak of the arc to launch across wide rooms.
• Use wall bounces for descent control: Instead of falling blindly into unexplored depths, tether near a ledge and bounce off walls to descend safely toward new resource pockets.

Early Upgrade Priority

Brutal Monsters scales enemy health and damage immediately. Floating iron for mid-tier technology leaves your base vulnerable to fast flying and heavy projectile enemies. Allocate your initial resource runs toward immediate mining speed and offensive power.

Because the Infiltrator has no passive dome protection while working underground, clearing waves quickly is critical. Upgraded base damage allows you to wipe incoming attackers within seconds, giving you maximum time to return to the mine.

Dome Defense and Wave Prioritization

Brutal Monsters features mixed attack waves containing aggressive ranged spitters, high-health crushers, and fast dive-bombers. Defending the dome effectively requires eliminating threats in order of their immediate projectile and shield damage:

1. Airborne and artillery monsters: Focus fire on fast flyers and long-range spitters first. Their continuous attacks quickly degrade the dome hull while you deal with ground forces.
2. Cluster burst damage: If your primary weapon features an alternate explosive mode, save ammunition for dense packs of flying enemies or clustered swarms.
3. Slow melee crushers: Ground units take longer to reach the dome perimeter. Let them close the distance while you track faster aerial targets, then finish them with direct fire before they land melee strikes.

Resource Hauling and Relic Recovery

The Infiltrator's speed drops significantly when encumbered. Carrying too many iron or water spheres reduces jump height and disables high-speed grapple flings, stranding you deep in the cave when the wave alarm sounds.

• Limit carrying weight: Haul resources in small batches of two to three items to keep swing mechanics responsive.
• Bank cobalt before the relic run: Keep extra cobalt in reserve to repair accumulated hull damage before retrieving the primary relic.
• Time the relic extraction: When you breach the relic chamber, do not tether the objective if an attack wave is imminent. Defeat the incoming wave first, then use the entire fresh timer window to haul the relic straight up your vertical main shaft to finish the assignment.