Long Life Spikes (BTD6)

For the upgrade in Bloons TD Battles 2, see Long Life Spikes (Battles 2).

Long Life Spikes

	Spikes last much longer and can carry over one round.

Tower		Path	Tier
Spike Factory		3	3

XP cost	2,100
Cash cost	$1,105 — Easy $1,300 — Medium $1,405 — Hard $1,560 — Impoppable

← Smart Spikes

Deadly Spikes →

Long Life Spikes is the Spike Factory's path 3 tier 3 upgrade in Bloons TD 6. Newly placed blue caltrop-like spike piles last for up to 140 seconds and can carry over 1 round, lasting up to 2 rounds. Like Smart Spikes, its predecessor, its attack speed quadruples at the start of each round, and has four additional targeting options (Close, Smart, Set Target, Automatic).

Stats

For a complete list of Spike Factory stats, see Stats:Spike Factory (BTD6).

This data was last updated for: version 55.1

Tower
Display range 42 units Footprint radius 8 units Targeting options Normal Close Smart Automatic Set Target

Attack
Cooldown 1.75s Offset (X, Y, Z) 0, 0, 11.56 Targeting Depends on targeting option Targeting range 42 units Filters Cannot target Camo
Ignores blockers
Projectile Pierce 5 Damage 1 Damage type Sharp Lifespan 140s Persists between rounds 1 Radius 6 units Rehit interval 0.001s Ignores blockers

Start-of-round buff
Cooldown modifier ×0.25 Lifespan 3s

1-0-3

Attack
Offset (X, Y, Z) 0, 0, 11.56 ↓ 0, 0, 15.19
Projectile Pierce 5 → 10

2-0-3

Attack
Offset (X, Y, Z) 0, 0, 15.19 ↓ 0, 0, 14.66
Projectile Damage type Sharp → Normal

0-1-3

Attack
Cooldown 1.75s → 1.4s Offset (X, Y, Z) 0, 0, 11.56 ↓ 0, 0, 14.66

0-2-3

Attack
Cooldown 1.4s → 1.05s

Costs and sell values

Note: this list does not factor in Monkey Knowledge or other discounts.

Tiers	Total cost				Sell value
	Easy	Medium	Hard	Impoppable	Easy	Medium	Hard	Impoppable
0-0-3	$2,420	$2,850	$3,075	$3,420	$1,694	$1,995	$2,153	$2,394
1-0-3	$3,100	$3,650	$3,940	$4,380	$2,170	$2,555	$2,758	$3,066
2-0-3	$3,610	$4,250	$4,590	$5,100	$2,527	$2,975	$3,213	$3,570
0-1-3	$2,930	$3,450	$3,725	$4,140	$2,051	$2,415	$2,608	$2,898
0-2-3	$3,610	$4,250	$4,590	$5,100	$2,527	$2,975	$3,213	$3,570

Strategy

This section was last updated for: version 54.3

Long Life Spikes covers Spike Factory's typical weakness at the start of rounds by carrying over its stockpile from the previous round. It works best when it spends most of its time building up spikes, not being pressured by Bloons, and is generally not worth it on Apopalypse and other modes that preserve spikes between rounds by default. Spike piles are not saved when retrying last round in CHIMPS, using a Continue, nor when loading a saved game, making them weaker outside of a Black Border context.

The tower prefers the 1-0-3 crosspath for lower cost, slightly higher damage in most contexts, and reducing the number of Acidic Mixture Dips needed for full uptime if Alchemists can't be isolated properly. Berserker Brew is a very important buff for the tower, cheaper than Long Life Spikes while quadrupling its damage output with both buffs active, making the tower stronger than Deadly Spikes for less cost. Stronger Stimulant, however, is still too expensive for what it offers at this tier.

Long Life Spikes is typically used as a stepping stone for Perma-Spike, but in the meantime it effectively blocks fast and aggressive early game rounds such as 36 and 40, as well as camos up through 50, as long as the pile is kept safe the round before or stalling is used. Manual targeting can also let the tower dump spike piles onto blimp layers in mid-game, but without heavy stalling it falls short in this role compared to MOAB SHREDR.

Late game, manual targeting combined with stalling and damage debuffs can be used to snipe DDT layers and the round 100 BAD layer to serve as a mini-Perma-Spike. With Embrittlement and 1-4-0 Glue Strike (for the soaking debuff) active as Bloons enter the pile, a fully stalled spike pile deals about 6k-8k damage per Long Life Spikes for a very cheap kill.

Update history

For a complete list of Spike Factory changes, see Update history:Spike Factory (BTD6).

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Version 2.0

• Far targeting no longer causes the game to crash if it cannot reach the track (bug fix)

Version 14.0

•  Now gains a 4× attack speed buff for 2.5 seconds at the start of each round

Version 23.0

“

Like a few other towers before it, the attack speed crosspath for Spike Factory has outshined the others. We have reworked the lower Spike Factory tiers to distribute this power more evenly while keeping high tier factories at a similar level of power. — Update notes

”

•  Overall cost increased by $200 (due to cost changes for previous tiers)
•  Base spike factory rate increased ― 2.2s → 1.75s

0-1-3

•  Rate reduced ― 1.32s → 1.4s

0-2-3

•  Rate increased ― 0.99s → 0.98s

Version 24.0

•  Smart targeting now places spikes as far back on the track as it can, rather than directly in front of the Bloon closest to leaking (undocumented)

Version 38.0

•  Start-of-round attack speed buff duration increased ― 2.5s → 3s

Version 39.0

•  Spike Factory no longer can shotgun spikes for exactly one frame after spawning (bug fix)

Version 43.0

“

Long Life Spikes can start creating a nice buildup of spikes in advance but most of the time feels fairly meh as a stepping stone into Deadly Spikes, a little price here is being shifted up to improve standalone upgrade value. — Update notes

”

•  Upgrade cost reduced ― $1,400 → $1,300

Version 49.0

“

This update we’ve finally decided to nerf Permaspike by completely removing the ‘Far’ target priority from the earlier Smart Spikes upgrade. We know that this loss will be incredibly painful to deal with for the many spike factory enjoyers out there, so we have also included a couple other minor QoL adjustments to the Smart Spikes upgrade in a hopeful attempt to offset this. — Update notes

”

•  Reworked targeting options ― Normal, Close, Far, Smart → Normal, Close, Smart, Set Target, Automatic
  •  Smart Spikes: Adds a "Set Target" option, which allows to select the place inside the Spike Factory's range where the spikes go to.
  •  Smart Spikes: Adds a "Automatic" option, attempts to directly target the first bloon
  •  Removed "Far" targeting option

Gallery

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

Screenshots

• 
  Long Life Spikes with no crosspath
• 
  Long Life Spikes with 013 crosspath
• 
  Long Life Spikes with 023 crosspath
• 
  Long Life Spikes with 103 crosspath
• 
  Long Life Spikes with 203 crosspath
• 
  Long Life Spikes projectile for all crosspaths except 203
• 
  Long Life Spikes projectile with 203 crosspath

Assets

• 
  Portrait
• 
  Upgrade icon
• 
  Insta Monkey icon

In other languages

Language	Name / Description	Notes
Arabic	السنون/النتوءات طويلة العمر النتوءات تدوم فترة أطول ومن الممكن أن تستمر لأكثر من جولة واحدة.	—
Danish	Langtidsholdbare Søm Søm varer meget længere og følger med én runde.	—
German	Langlebige Nägel Nägel halten viel länger und können eine Runde übertragen werden.	—
Spanish	Clavos longevos Los clavos duran mucho más y pueden seguir en la pista una ronda más.	—
Spanish (LA)	Clavos longevos Los clavos duran mucho más y pueden seguir en la pista una ronda más.	—
Finnish	Pitkäikäiset piikit Piikit kestävät paljon pidempään ja voivat jatkaa kerran seuraavalle kierrokselle.	—
French	Pointes longue durée Les pointes durent bien plus longtemps et peuvent être utilisées à la manche suivante.	—
Italian	Aculei lunga durata Gli aculei durano più a lungo e rimangono attivi per un altro round.	—
Japanese	長寿スパイク スパイクの持続時間がもっと長くなり、1ラウンド分、繰り越せる。	—
Korean	수명이 긴 스파이크 스파이크 지속 시간이 매우 증가하며 다음 라운드까지 이어질 수 있습니다.	—
Dutch	Langlevenstekels Stekels gaan veel langer mee en kunnen één keer mee naar de volgende ronde.	—
Norwegian	Langvarige spiker Spikere varer mye lenger og kan vare en hel runde.	—
Polish	Długożyjące kolce Kolce wytrzymują znacznie dłużej i mogą funkcjonować ponad jedną rundę.	—
Portuguese (Brazil)	Espinhos de Vida Longa Espinhos duram muito mais e podem durar além de uma rodada.	—
Russian	Живучие шипы Шипы становятся долговечнее и могут продержаться целый раунд.	—
Swedish	Spikar med lång livstid Spikar varar mycket längre och kan fortsätta till nästa runda.	—
Thai	ยืดอายุตะปู ตะปูอยู่ได้นานขึ้นมาก และยกยอดไปใช้รอบถัดไปได้หนึ่งรอบ	—
Turkish	Uzun Ömürlü Çiviler Çiviler çok daha uzun süre kalır ve bir tur boyunca sürebilir.	—
Chinese (simplified)	长寿刺钉 钉刺持续时间更长，可以持续一回合。	—
Chinese (traditional)	長壽針刺 針刺持續時間更長，可堅持一回合。	—
This list was last updated for: version 43.1