Spike Factory (BMC)

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Spike Factory iterations: BTD4 • BTD5 • Battles • BMC • BTD6 • Battles 2
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Spike Factory
Portrait of Spike Factory
Each round generates piles of road spikes that can pop 5 bloons each.
Cost $825
Hotkey M
Favoured on —
Restricted on Desert Terrain, High Desert Terrain
My Monkeys bio
Description Spike Factories are tailor made for guarding exits but can be used anywhere. Powerful upgrades include: White Hot Spikes, Spiked Ball Factory, MOAB-SHREDR, Spike Storm.
Strengths Never misses; hits camo
Weaknesses Fast bloons, multiple paths
Occupies Spike Factory Warehouse
Upgrades —

The Spike Factory is a tower in Bloons Monkey City. It is available to unlock after the player reaches City Level 5.

It dispenses spike piles onto random areas of track. Spike piles each have 5 pierce, with a visual representation of pierce based on pierce remaining. Spikes last up to 70 seconds or 1 round, whichever comes first. It can be improved to strengthen each spike pile into spiked balls and mines, or attack significantly faster and disperse MOAB-shredding spikes throughout all paths.

Upgrades

Path 1

Bigger Stacks
Cost: $700
  Generates larger piles of Spikes per shot.
White Hot Spikes
Cost: $900
  Cuts through lead like a hot spike through... lead.
Spiked Ball Factory
Cost: $2,400
  Produces sharp spiked balls that do extra damage to ceramics.
Spiked Mines
Cost: $14,000
  Spiked balls explode when they lose all their spikes.

Path 2

Faster Production
Cost: $800
  Increases the rate of Spike production.
Even Faster Production
Cost: $1,250
  Rate of spike production increases even more.
MOAB-SHREDR Spikes
Cost: $3,000
  Super-Hard-Rending-Engine-Driven-Razors shred MOAB class bloons.
Spike Storm
Cost: $6,500
  Ability: Lays down a thick carpet of Spikes over the whole track.

Path 1

Bigger Stacks
Cost: $700
  Generates larger piles of spikes per shot.
White Hot Spikes
Cost: $900
  Cuts through lead like a hot spike through... lead.
Spiked Ball Factory
Cost: $2,400
  Modified to produce heavy but viciously sharp spiked balls instead of regular spikes. Do extra damage to ceramic bloons.
Spiked Mines
Cost: $14,000
  Rigged with heavy explosives, the spiked balls are set to go off when they lose all their spikes.

Path 2

Faster Production
Cost: $800
  Increases the rate of spike production.
Even Faster Production
Cost: $1,250
  By adding sprockets, dongles and widgets, the rate of spike production increases even more.
MOAB-SHREDR Spikes
Cost: $3,000
  Super-Hard-Rending-Engine-Driven-Razors are specially engineered to really hurt MOAB-class bloons.
Spike Storm
Cost: $6,500
  Lays down a thick carpet of spikes over the whole track.

Monkey Knowledge

Level Mobile description Flash description
1 Each pile contains 1 more spike +1 spike per pile
2 Base cost and all upgrade costs are 3% cheaper Base cost and all upgrade costs 3% cheaper
3 MOAB-SHREDR spikes deal 20% more damage to MOAB-class Bloons MOAB-SHREDR spikes deal 20% more damage to MOAB-class[fn 1]
4 Spiked Balls deal 3 more damage to Ceramic Bloons Spiked Balls deal +3 damage to Ceramics
5 Spike Storm cooldown decreased by 5 seconds Spike Storm cooldown decreased by 5 seconds
6 Each pile contains 2 more spikes +2 spikes per pile
7 Base cost and all upgrade costs are 6% cheaper Base cost and all upgrade costs 6% cheaper
8 MOAB-SHREDR spikes deal 40% more damage to MOAB-class MOAB-SHREDR spikes deal 40% more damage to MOAB-class[fn 1]
9 Spiked Balls deal 4 more damage to Ceramic Bloons Spiked Balls deal +4 damage to Ceramics
10 Spike Storm cooldown decreased by 7 seconds Spike Storm cooldown decreased by 7 seconds
11 Each pile contains 3 more spikes +3 spikes per pile
12 Base cost and all upgrade costs are 9% cheaper Base cost and all upgrade costs 9% cheaper
13 MOAB-SHREDR spikes deal 60% more damage to MOAB-class MOAB-SHREDR spikes deal 60% more damage to MOAB-class[fn 1]
14 Spiked Balls deal 5 more damage to Ceramic Bloons Spiked Balls deal +5 damage to Ceramics
15 Spike Storm cooldown decreased by 8 seconds[fn 2] Spike Storm cooldown decreased by 8 seconds

Strategy

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For more Spike Factory images, see Gallery:Spike Factory.

Screenshots

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Assets

Footnotes

  1. ↑ 1.0 1.1 1.2 In the Flash version, the MOAB damage multiplier applies twice due to a bug. It deals 44% more MOAB damage at rank 3, 207% more at rank 8, and 298% at rank 13. These tiers do not affect its damage to Boss Bloons at all, as MOAB-SHREDR Spikes has a separate damage modifier for them.
  2. ↑ In the mobile version, this actually reduces Spike Storm's cooldown by 12 seconds.