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The Mactera Bomber, the bloated, overweight cousin of the Mactera Spawn. It's a grotesque sack of flying slime, ponderously keeping itself aloft while only seeking to entrap any invaders in sickly, sticky goo before firing barbed, venomous darts at its stuck victims. Nothing good can be said about the Mactera Bomber, except for the fact that it has very obvious weak spots: The bulging and exposed slime sacks on its sides. Shoot these. Just...don't stand underneath when you do.
— Miner's Manual Description


The Mactera Goo Bomber is an aerial enemy that lobs sticky goo at unsuspecting dwarves, reducing their movement speed and leaving them vulnerable to attacks from other creatures. It will typically fly in a curved pattern, circling a potential target until it stops to begin its firing process.

Combat[]

The Goo Bomber is highly susceptible to damage from its two slime sacs, which serve as its critical weakpoints. Each sac can sustain a certain threshold of damage—depending on the mission's Hazard Level—before breaking, after which it will no longer serve as a weakpoint.

Upon dying, the Goo Bomber will swirl uncontrollably until it hits the ground, leaving behind a pool of sticky goo. This effect can be negated by ensuring the bomber is eliminated with no intact weakpoints (slime sacs).

Health and Armor[]

Effective

Health Scaling

Hazard Level
Normal Mission DD EDD
1 2 3 4 5 3 3.5 4.5 5 5.5
Player Count 200 400 880 1040 1200 880 1240 1440 1360 1840
616 1200 1520 1600 2560 1040 1560 1680 1760 2640
616 1200 1520 1600 2560 1040 1560 1680 1760 2640
1480 1600 1840 2080 2320 1840 2080 2240 2240 2880

Breakable Weakpoints

The Mactera Goo Bomber possess 2 Sacs, unlike regular weakpoints, they are breakable.
The Sacs have a base health of 50 that scale with Hazard Level.

Effective

Health Scaling

Hazard Level
Normal Mission DD EDD
1 2 3 4 5 3 3.5 4.5 5 5.5
Player Count to 15 35 50 75 85 50 60 80 85 100

When it comes to dealing damage to break the weakpoint itself the weakpoint damage multipliers do not apply.
For example a weakpoint with 200 effective HP and a multiplier of 3x being shot for by a gun that deals 15 direct damage with a 30% weakpoint bonus will only take 15 damage.
Any Area Damage can damage and potentially break them, which can be detrimental since they don’t benefit from weakpoint damage.
The CRSPR Flamethrower and the Cryo Cannon can’t damage breakable weakpoints.

Attacks[]

Blob Shot
AoE Projectile
Area Damage Hazard Level
Normal Mission DD EDD
1 2 3 4 5 3 3.5 4.5 5 5.5
Player Count 0 3.75 22.5 45 57 30 52.5 30 57 60

{{#ifeq: Explosive | Cold | |

0 25.5 34.5 49.95 60 0 25.5 34.5 49.95 60

{{#ifeq: Explosive | Cold | |

0 25.5 34.5 49.95 60 0 25.5 34.5 49.95 60

{{#ifeq: Explosive | Cold | |

0 40.5 43.5 64.95 75 0 40.5 43.5 64.95 75
Details
Damage Type Kinetic
Dwarf for scale (1.5 m)

Radius: 0.8 m
Maximum Damage Radius: 0.8 m
Minimum Area Damage: 25 %

Goo Barrage moves forward releasing a trail of Goo.
Goo effect: ×0.3 Movement while in the Goo. The effect refresh every 1 s.

Variants[]

Glacial Strata Variant[]

The Mactera have managed to find a niche for themselves even in the frigid permafrost layers of Hoxxes, and the Mactera Frost Bomber is one such adaptation. Rather than the sticky, hot mess left by its cousin, the Frost Bomber entraps you in freezing globs of rapidly hardening foam instead. It's theorized the foam is actually a mass of microscopic, burrowing larvae, but any organic activity within it ceases as soon as those covered in it return to normal temperatures.
— Miner's Manual Description


Blob Shot
AoE Projectile
Area Damage Hazard Level
Normal Mission DD EDD
1 2 3 4 5 3 3.5 4.5 5 5.5
Player Count 0 3.75 22.5 45 57 30 52.5 30 57 60

{{#ifeq: Explosive | Cold | |

0 25.5 34.5 49.95 60 0 25.5 34.5 49.95 60

{{#ifeq: Explosive | Cold | |

0 25.5 34.5 49.95 60 0 25.5 34.5 49.95 60

{{#ifeq: Explosive | Cold | |

0 40.5 43.5 64.95 75 0 40.5 43.5 64.95 75
Details
Damage Type Kinetic
Dwarf for scale (1.5 m)

Radius: 0.8 m
Maximum Damage Radius: 0.8 m
Minimum Area Damage: 25 %

Frost Barrage moves forward releasing a trail of freezing foam.
Freezing foam effect: ×0.35 Movement and 1.4 Cold /s while in the foam. The effect refresh every 0.25 s.

Tips[]

The M1000 Classic can destroy each slime sac on a Goo Bomber with a single focus shot on most Hazard Levels.

The Cryo Cannon and Cryo Grenade can permanently freeze a non-Glacial Strata Goo Bomber, causing it to fall to the ground until it breaks (eliminating it); this is particularly effective against groups of Mactera in close proximity to one another.

Multiple Goo Bombers can spawn when playing missions with the Mactera Plague Mutator on higher Hazard Levels, posing a greater threat of landing globs of sticky goo.

Goo bombers pose a deadly threat to tunneling drillers, as they ignore slow effects and can come in packs. Consider repeatedly stunning them with power attacks, Impact axes, Power Drills, and even Satchel Charges. While you may be unable to run sideways in the goo, you can always dig straight down to escape the coming hoard.

Gallery[]

Trivia[]