Spike Factory
Support
Spike Factory
SpikeFactory
Upgrades
Path 1
1. Bigger Stacks$800total $800Creates larger piles of spikes per shot.
2. White Hot Spikes$600total $1 400Cuts through Lead Bloons and Frozen Bloons.
3. Spiked Balls$2 300total $3 700Produces spiked balls that do extra damage to Ceramic and Fortified Bloons.
4. Spiked Mines$9 500total $13 200Spiked mines explode violently when they lose all their spikes.
5. Super Mines$125 000total $138 200Creates gigantic exploding spiked mines that can wipe out almost anything.
Path 2
1. Faster Production$600total $600Rapidly increases production rate.
2. Even Faster Production$800total $1 400Increases production rate even more.
3. MOAB SHREDR$2 500total $3 900Super-Hard-Rending-Engine-Driven-Razors shred MOAB-Class Bloons.
4. Spike Storm$7 000total $10 900Spike Storm ability: Shoots out a thick layer of spikes over the entire track.
5. Carpet of Spikes$41 000total $51 900Regularly sets a carpet of spikes over the whole track.
Path 3
1. Long Reach$150total $150Increases range for spike pile drops, plus piles last longer.
2. Directed Spikes$400total $550
3. Long Life Spikes$1 300total $1 850Spikes last much longer and can carry over one round.
4. Deadly Spikes$3 600total $5 450Extra deadly spikes can pop through 3 layers per spike and last another round.
5. Perma-Spike$30 000total $35 450High damage spikes become almost permanent.
Paragon
Mega Massive Munitions Factory$750 000A factory of explosive spike Bloon annihilation.
Abilities
| Ability | From | Cooldown | Effect | Description |
|---|---|---|---|---|
 Spike Storm | 0-4-0: Spike Storm | 50 s | radius 6; damage 1; radius 6; damage 1; radius 6; damage 1; radius 6; damage 1 | Shoots out a thick layer of spikes over the entire track. |
 Controlled Burst | Paragon: Mega Massive Munitions Factory | 15 s | speed-up ×0.25 | Makes this Monkey attack incredibly fast for 10 seconds. |
 Spikeageddon | Paragon: Mega Massive Munitions Factory | 75 s | – | Fire a quick volley of exploding spikes over the entire map |
Crosspath
Pick the path tiers like in the game. Shown: the cost with all upgrades, attacks, cooldown, damage and pierce of every projectile, nested ones included (explosions, fragments).
Numbers by tier
| Tier | Range | Cooldown, s | Damage per shot | Pierce | Rough DPS | Cannot pop |
|---|---|---|---|---|---|---|
| 000 | 34 | 1.75 | 1 | 5 | 0.5714 | Lead Frozen |
| 100 | 34 | 1.75 | 1 | 10 | 0.5714 | Lead Frozen |
| 200 | 34 | 1.75 | 1 | 10 | 0.5714 | – |
| 300 | 34 | 1.75 | 2 | 11 | 1.1429 | – |
| 400 | 34 | 1.75 | 10 | 30 | 5.7143 | Black |
| 500 | 34 | 3.5 | 1 000 | 60 | 285.714 | – |
| 010 | 34 | 1.4 | 1 | 5 | 0.7143 | Lead Frozen |
| 020 | 34 | 1.05 | 1 | 5 | 0.9524 | Lead Frozen |
| 030 | 34 | 1.05 | 1 | 5 | 0.9524 | Lead Frozen |
| 040 | 34 | 1.05 | 1 | 5 | 0.9524 | Lead Frozen |
| 050 | 50 | 0.525 | 3 | 10 | 5.7143 | Lead Frozen |
| 001 | 42 | 1.75 | 1 | 5 | 0.5714 | Lead Frozen |
| 002 | 42 | 1.75 | 1 | 5 | 0.5714 | Lead Frozen |
| 003 | 42 | 1.75 | 1 | 5 | 0.5714 | Lead Frozen |
| 004 | 42 | 1.75 | 3 | 5 | 1.7143 | Lead Frozen |
| 005 | 42 | 6.0625 | 10 | 50 | 1.6495 | Lead Frozen |
| Paragon | 42 | 11 | 120 | 30 | 10.9091 | – |
Knowledge
| Knowledge | Effect | Works from |
|---|---|---|
| First Last Line of Defense | Purchase price of first Spike Factory each game is $150 less. | placement |
| One More Spike | Spike Factory stacks get +1 spike. | placement |
| Very Shreddy | MOAB SHREDR spikes do +1 extra damage to MOAB-Class Bloons. | 0-3-0 |
| Hi-Value Mines | Spiked Mines cost reduced by 1500. | 4-0-0 |
Plus the ones every tower gets:
From game data: the tower model names the knowledge, or the knowledge names the tower or one of its upgrades. "Works from" lists the first tiers whose model has it.