Engineer Monkey (BTD6)

Engineer Monkey iterations: BTD5 • Battles • BMC • BTD6 • Battles 2

Engineer Monkey
Holds a trusty nail-gun to pop the Bloons. Can upgrade to create its own nail-shooting sentry turrets.
Unlock method(s) Choose at levels 22, 23, 24, or 26 Category Support Cost $300 — Easy $350 — Medium $380 — Hard $420 — Impoppable Hotkey L Introduced Version 12.0

The Engineer Monkey is a Support tower in Bloons TD 6, introduced in version 12.0. It attacks by firing sharp nails at nearby Bloons, which can pop up to 3 Bloons each. It has above-average attack speed by default, but it cannot pop Lead Bloons or frozen Bloons, and it cannot detect Camo Bloons. It can be upgraded to deploy Sentries to increase its firepower, or dispense foam that removes Camo, regrow, and lead properties, or pin Bloons in place on each hit, or deploy traps that capture Bloons and convert them to extra cash, or boost the attack speed of other towers with its Overclock ability.

Upgrades

Path 1

Sentry Gun XP cost: 160
	Creates temporary sentry guns and deploys them close to track anywhere in radius. Easy Medium Hard Impoppable $425 $500 $540 $600

Faster Engineering XP cost: 550
	Increased efficiency allows the Engineer to produce sentries, foam and bloon traps more often. Easy Medium Hard Impoppable $340 $400 $430 $480

Sprockets XP cost: 1,850
	Increases sentry gun and Engineer attack speed. Easy Medium Hard Impoppable $490 $575 $620 $690

Sentry Expert XP cost: 9,500
	Sentries deploy with different damage types based on your need. Easy Medium Hard Impoppable $2,125 $2,500 $2,700 $3,000

Sentry Champion XP cost: 30,000
	Creates super-powerful but highly unstable sentries. Easy Medium Hard Impoppable $27,200 $32,000 $34,560 $38,400

Path 2

Larger Service Area XP cost: 170
	Shoots further and deploys sentries in a much larger area. Sentries have longer range. Easy Medium Hard Impoppable $210 $250 $270 $300

Deconstruction XP cost: 500
	Nail gun and Sentry shots do extra damage to MOAB-class and Fortified Bloons. Easy Medium Hard Impoppable $295 $350 $380 $420

Cleansing Foam XP cost: 2,000
	Sprays foam that removes Camo and Regrow and pops Lead Bloons. Easy Medium Hard Impoppable $765 $900 $970 $1,080

Overclock XP cost: 14,000
	Overclock Ability: Target another tower to supercharge its attack speed for a short time. Easy Medium Hard Impoppable $11,475 $13,500 $14,580 $16,200

Ultraboost XP cost: 35,000
	Ultra-Overclocked Monkeys gain a small but permanent boost every time they are overclocked. Easy Medium Hard Impoppable $61,200 $72,000 $77,760 $86,400

Path 3

Oversize Nails XP cost: 150
	Massivization allows nails to pop 8 Bloons at once, including frozen. Also increases Foam and Sentry effectiveness. Easy Medium Hard Impoppable $380 $450 $485 $540

Pin XP cost: 500
	Pins Bloons in place for a short time when struck. Easy Medium Hard Impoppable $185 $220 $235 $265

Double Gun XP cost: 1,800
	Two guns for twice the fun. Easy Medium Hard Impoppable $380 $450 $485 $540

Bloon Trap XP cost: 11,000
	Bloon trap captures Bloons until full. Select to empty full trap for cash. Easy Medium Hard Impoppable $3,060 $3,600 $3,890 $4,320

XXXL Trap XP cost: 40,000
	Huge Bloon traps can trap some of the largest Bloons in them... Easy Medium Hard Impoppable $38,250 $45,000 $48,600 $54,000

Paragon

Master Builder XP cost: 750,000
	Monkey engineering developed to perfection. Can Overclock other Paragons, and creates three Mega Sentries that can build their own sentries. Easy Medium Hard Impoppable $510,000 $600,000 $648,000 $720,000

Stats

For a complete list of Engineer Monkey stats, see Stats:Engineer Monkey (BTD6).

This data was last updated for: version 52.2

Tower
Display range 40 units Footprint radius 7 units Targeting options First Last Close Strong

Attack
Cooldown 0.7s Offset (X, Y, Z) -1.11, 13.49, 10.7 Targeting Depends on targeting option Targeting range 40 units Filters Cannot target Camo
Projectile Pierce 3 Damage 1 Damage type Sharp Speed 375 units/s Lifespan 0.24s Radius 2 units Filters Cannot hit Camo

Related Monkey Knowledge

This list does not include Monkey Knowledge that affects all Support towers.

Monkey Knowledge	Cost	Prerequisites	Introduced
Vigilant Sentries Sentry Turrets last longer than normal.	Free	3 invested One More Spike	Version 12.0
Thicker Foams Cleansing Foam can hit 3 more Bloons before expiring.	250	3 invested Vigilant Sentries	Version 12.0
Big Traps Bloon Trap can hold 30 more RBE.	500	8 invested Thicker Foams	Version 12.0

Rogue Legends

Starter parties with Engineer Monkeys

Item	Insta Monkey 1	Insta Monkey 2	Artifact
Adora	2-0-0 Alchemist	0-2-0 Engineer Monkey	Divine Intervention Common
Silas	0-2-0 Ice Monkey	0-0-2 Engineer Monkey	Esoteric Elementalist Rare
Sleigh Churchill	2-0-0 Ice Monkey	2-0-0 Engineer Monkey	Abundant Choices Rare
She-Ra	2-0-0 Alchemist	0-2-0 Engineer Monkey	Divine Intervention Common

While not explicitly part of her starter party, Scientist Gwendolin also starts with an Engineer Monkey because she starts with Alchemic Engineering Rare.

Artifacts that add Engineer Monkeys

Artifact	Common	Rare	Legendary
Alchemic Engineering	0-1-1 Engineer Monkey	0-1-2 Engineer Monkey	0-0-2 Engineer Monkey

Artifacts that affect Engineer Monkeys

This list does not include Artifacts that affect all Support towers.

Artifact	Common effect	Rare effect	Legendary effect
Alchemic Engineering	Tier 3 and higher Engineers have pierce reduced 60%, and convert Bloons to Gold. Adds a 0-1-1 Engineer to your Party	Tier 3 and higher Engineers have pierce reduced 45%, and convert Bloons to Gold. Adds a 0-1-2 Engineer to your Party	Tier 3 and higher Engineers have pierce reduced 0%, and convert Bloons to Gold. Adds a 0-0-2 Engineer to your Party
Explosive Economics	When Support Monkeys are sold, an Area of Effect explosion deals 250 damage to all nearby Bloons. Spike Factory, Engineer, and Beast Handler placement cooldown reduced 1 round(s)	When Support Monkeys are sold, an Area of Effect explosion deals 500 damage to all nearby Bloons. Spike Factory, Engineer, and Beast Handler placement cooldown reduced 1 round(s)	When Support Monkeys are sold, an Area of Effect explosion deals 900 damage to all nearby Bloons. Spike Factory, Engineer, and Beast Handler placement cooldown reduced 2 round(s)
Homing Projectiles	—	—	Grants homing projectiles for Dart Monkey, Bomb Shooter, Tack Shooter, Super Monkey, Druid, Engineer, Dartling Gunner and all Heroes

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
0-0-0	$300	$350	$380	$420	$210	$245	$266	$294
1-0-0	$725	$850	$920	$1,020	$508	$595	$644	$714
1-1-0	$935	$1,100	$1,190	$1,320	$655	$770	$833	$924
1-0-1	$1,105	$1,300	$1,405	$1,560	$774	$910	$984	$1,092
0-1-0	$510	$600	$650	$720	$357	$420	$455	$504
0-1-1	$890	$1,050	$1,135	$1,260	$623	$735	$795	$882
0-0-1	$680	$800	$865	$960	$476	$560	$606	$672
2-0-0	$1,065	$1,250	$1,350	$1,500	$746	$875	$945	$1,050
2-1-0	$1,275	$1,500	$1,620	$1,800	$893	$1,050	$1,134	$1,260
2-2-0	$1,570	$1,850	$2,000	$2,220	$1,099	$1,295	$1,400	$1,554
2-0-1	$1,445	$1,700	$1,835	$2,040	$1,012	$1,190	$1,285	$1,428
2-0-2	$1,630	$1,920	$2,070	$2,305	$1,141	$1,344	$1,449	$1,614
0-2-0	$805	$950	$1,030	$1,140	$564	$665	$721	$798
1-2-0	$1,230	$1,450	$1,570	$1,740	$861	$1,015	$1,099	$1,218
0-2-1	$1,185	$1,400	$1,515	$1,680	$830	$980	$1,061	$1,176
0-2-2	$1,370	$1,620	$1,750	$1,945	$959	$1,134	$1,225	$1,362
0-0-2	$865	$1,020	$1,100	$1,225	$606	$714	$770	$858
1-0-2	$1,290	$1,520	$1,640	$1,825	$903	$1,064	$1,148	$1,278
0-1-2	$1,075	$1,270	$1,370	$1,525	$753	$889	$959	$1,068
3-0-0	$1,555	$1,825	$1,970	$2,190	$1,089	$1,278	$1,379	$1,533
3-1-0	$1,765	$2,075	$2,240	$2,490	$1,236	$1,453	$1,568	$1,743
3-2-0	$2,060	$2,425	$2,620	$2,910	$1,442	$1,698	$1,834	$2,037
3-0-1	$1,935	$2,275	$2,455	$2,730	$1,355	$1,593	$1,719	$1,911
3-0-2	$2,120	$2,495	$2,690	$2,995	$1,484	$1,747	$1,883	$2,097
0-3-0	$1,570	$1,850	$2,000	$2,220	$1,099	$1,295	$1,400	$1,554
1-3-0	$1,995	$2,350	$2,540	$2,820	$1,397	$1,645	$1,778	$1,974
2-3-0	$2,335	$2,750	$2,970	$3,300	$1,635	$1,925	$2,079	$2,310
0-3-1	$1,950	$2,300	$2,485	$2,760	$1,365	$1,610	$1,740	$1,932
0-3-2	$2,135	$2,520	$2,720	$3,025	$1,495	$1,764	$1,904	$2,118
0-0-3	$1,245	$1,470	$1,585	$1,765	$872	$1,029	$1,110	$1,236
1-0-3	$1,670	$1,970	$2,125	$2,365	$1,169	$1,379	$1,488	$1,656
2-0-3	$2,010	$2,370	$2,555	$2,845	$1,407	$1,659	$1,789	$1,992
0-1-3	$1,455	$1,720	$1,855	$2,065	$1,019	$1,204	$1,299	$1,446
0-2-3	$1,750	$2,070	$2,235	$2,485	$1,225	$1,449	$1,565	$1,740
4-0-0	$3,680	$4,325	$4,670	$5,190	$2,576	$3,028	$3,269	$3,633
4-1-0	$3,890	$4,575	$4,940	$5,490	$2,723	$3,203	$3,458	$3,843
4-2-0	$4,185	$4,925	$5,320	$5,910	$2,930	$3,448	$3,724	$4,137
4-0-1	$4,060	$4,775	$5,155	$5,730	$2,842	$3,343	$3,609	$4,011
4-0-2	$4,245	$4,995	$5,390	$5,995	$2,972	$3,497	$3,773	$4,197
0-4-0	$13,045	$15,350	$16,580	$18,420	$9,132	$10,745	$11,606	$12,894
1-4-0	$13,470	$15,850	$17,120	$19,020	$9,429	$11,095	$11,984	$13,314
2-4-0	$13,810	$16,250	$17,550	$19,500	$9,667	$11,375	$12,285	$13,650
0-4-1	$13,425	$15,800	$17,065	$18,960	$9,398	$11,060	$11,946	$13,272
0-4-2	$13,610	$16,020	$17,300	$19,225	$9,527	$11,214	$12,110	$13,458
0-0-4	$4,305	$5,070	$5,475	$6,085	$3,014	$3,549	$3,833	$4,260
1-0-4	$4,730	$5,570	$6,015	$6,685	$3,311	$3,899	$4,211	$4,680
2-0-4	$5,070	$5,970	$6,445	$7,165	$3,549	$4,179	$4,512	$5,016
0-1-4	$4,515	$5,320	$5,745	$6,385	$3,161	$3,724	$4,022	$4,470
0-2-4	$4,810	$5,670	$6,125	$6,805	$3,367	$3,969	$4,288	$4,764
5-0-0	$30,880	$36,325	$39,230	$43,590	$21,616	$25,428	$27,461	$30,513
5-1-0	$31,090	$36,575	$39,500	$43,890	$21,763	$25,603	$27,650	$30,723
5-2-0	$31,385	$36,925	$39,880	$44,310	$21,970	$25,848	$27,916	$31,017
5-0-1	$31,260	$36,775	$39,715	$44,130	$21,882	$25,743	$27,801	$30,891
5-0-2	$31,445	$36,995	$39,950	$44,395	$22,012	$25,897	$27,965	$31,077
0-5-0	$74,245	$87,350	$94,340	$104,820	$51,972	$61,145	$66,038	$73,374
1-5-0	$74,670	$87,850	$94,880	$105,420	$52,269	$61,495	$66,416	$73,794
2-5-0	$75,010	$88,250	$95,310	$105,900	$52,507	$61,775	$66,717	$74,130
0-5-1	$74,625	$87,800	$94,825	$105,360	$52,238	$61,460	$66,378	$73,752
0-5-2	$74,810	$88,020	$95,060	$105,625	$52,367	$61,614	$66,542	$73,938
0-0-5	$42,555	$50,070	$54,075	$60,085	$29,789	$35,049	$37,853	$42,060
1-0-5	$42,980	$50,570	$54,615	$60,685	$30,086	$35,399	$38,231	$42,480
2-0-5	$43,320	$50,970	$55,045	$61,165	$30,324	$35,679	$38,532	$42,816
0-1-5	$42,765	$50,320	$54,345	$60,385	$29,936	$35,224	$38,042	$42,270
0-2-5	$43,060	$50,670	$54,725	$60,805	$30,142	$35,469	$38,308	$42,564

Strategy

For more in-depth strategies, see Strategy:Engineer Monkey (BTD6).

This section was last updated for: version 52.0

At base, Engineer is a stronger Dart Monkey, with higher attack speed and pierce but a significantly higher cost. An Engineer-Dart start can work on single lane maps, most notably Blons but not on Workshop, while an Engineer-Wizard start can work on easier maps. Early on, top path upgrades give good single target damage, while Pin and Double Gun can save large amounts of money on single lanes, such as for an early Captain Churchill.

Overclock and Ultraboost are Engineer's main uses, greatly boosting the power of almost any tower in standard, Freeplay, and Boss Events, while Cleansing Foam can serve as decamo or Bloon slowdown when crosspathed with Pin. Bloon Trap focuses on extra money generation and is strong starting from the 30s through the 50s, and the top path serves as a pure damage path with high power and low consistency.

Update history

For a complete list of Engineer Monkey changes, see Update history:Engineer Monkey (BTD6).

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Version 29.0

“

Engineer’s bottom 2 paths have a heavier support focus, so to start them off a bit easier we have shifted some starting cost out and into the non-supportive path. For the sake of further improved crosspath potential — Update notes

”

•  Cost reduced ― $450 → $400

Version 43.0

“

While better than many options, base Engineer still takes a lot of available starting cash so the cost is reduced slightly and being moved back up into Cleansing Foam & Bloontrap [...] — Update notes

”

•  Cost reduced ― $400 → $350

Cosmetic items

Item	Category	Unlock method(s)	Introduced
Vampire Hunter Engineer Projectiles	Monkeys — Projectiles	Trophy Store —  35, Prime Gaming drop 9	Version 28.0
Engineer Palbot Pet	Monkeys — Pets	Trophy Store —  120, Pets Fan Pack (IAP)	Version 42.0

Gallery

For more Engineer Monkey images, see Gallery:Engineer Monkey.

Screenshots

This section needs more screenshots. See the screenshot guidelines for more information on what screenshots are needed and how to add them.

Assets

• 
  Portrait
• 
  Insta Monkey icon

In other languages

This section was last updated for: version 49.2

Name

Language	Text	Notes
Arabic	القرد المهندس	—
Danish	Tekniker-abe	—
German	Affenpionier	—
Spanish	Mono ingeniero	—
Spanish (Latin America)	Mono ingeniero	—
Finnish	Insinööriapina	—
French	Singe ingénieur	—
Italian	Scimmia ingegnere	—
Japanese	エンジニアモンキー	—
Korean	엔지니어 원숭이	—
Dutch	Apeningenieur	—
Norwegian	Ingeniørape	—
Polish	Małpka inżynier	—
Portuguese (Brazil)	Macaco Engenheiro	—
Russian	Обезьяна-инженер	—
Swedish	Apingenjör	—
Thai	ลิงวิศวกร	—
Turkish	Mühendis Maymun	—
Chinese (simplified)	工程师猴	—
Chinese (traditional)	工程師猴	—

Description

Language	Text	Notes
Arabic	يحمل بندقية مسامير موثوقًا به لفرقعة البالونات. يمكن الترقية لإنشاء أبراج حراسة لإطلاق المسامير.	—
Danish	Armeret med en pålidelig sømpistol til at springe bloons. Kan opgraderes til at skabe sine egne sømspyttende sensortårne.	—
German	Besitzt ein verlässliches Bolzenschussgerät zum Platzen von Bloons. Kann für das Errichten von nagelverschießenden Wachtürmen verbessert werden.	—
Spanish	Usa una pistola de clavos eficaz que explota bloons. Se puede mejorar para que cree sus propias torretas centinelas lanzaclavos.	—
Spanish (Latin America)	Usa una pistola de clavos eficaz que explota bloons. Se puede mejorar para que cree sus propias torretas centinelas lanzaclavos.	—
Finnish	Pitelee luotettavaa naulapistoolia bloonien poksauttamiseen. Voidaan päivittää luomaan omia naulojaan ampuvia vartiotorneja.	—
French	Utilise un pistolet à clous robuste pour faire éclater les Bloons. Peut être amélioré pour créer ses propres tourelles sentinelles tireuses de clous.	—
Italian	Usa la sua fidata sparachiodi per far scoppiare i bloon. Quando viene potenziata, può creare le proprie torrette sentinella spara chiodi.	—
Japanese	ブルーンを割るための、頼れる釘打ちガンを持っている。アップグレードすると、自分の釘打ち番兵砲塔を作れる。	—
Korean	애용하는 못총으로 풍선을 터트립니다. 업그레이드하면 못을 발사하는 경비 포탑을 제작할 수 있습니다.	—
Dutch	Heeft een betrouwbaar spijkerpistool om Bloons mee te laten knallen. Kan geüpgraded worden om zijn eigen spijkerschietende geschutskoepels te bouwen.	—
Norwegian	Holder en trofast spikerpistol til å poppe bloons. Kan oppgraderes til å lage sitt eget vakttårn.	—
Polish	Włada pistoletem na gwoździe, którymi przekłuwa blony. Ulepszenia pozwalają tworzyć strzelające gwoździami wieżyczki strażnicze.	—
Portuguese (Brazil)	Segura um confiável dispara-pregos para estourar Bloons. Pode evoluir para criar suas próprias torres dispara-dardos.	—
Russian	Вооружена надёжным гвоздомётом для пробивания шаров. При улучшении может создавать собственные сторожевые турели-гвоздомёты.	—
Swedish	Har en pålitlig spikpistol som kan smälla Bloons. Kan uppgraderas för att skapa egna spikskjutande vakttorn.	—
Thai	ใช้ปืนตะปูคู่ใจเจาะลูกโป่ง อัปเกรดเพื่อสร้างป้อมระวังภัยที่ยิงตะปูเองได้	—
Turkish	Bloon’ları patlatmak için sağlam bir çivi silahı kullanır. Kendine ait, çivi fırlatan gözcü kuleleri oluşturmak üzere yükseltilebilir.	—
Chinese (simplified)	拿着可靠的射钉枪射击气球。可以升级以创建自己的射钉岗哨机枪。	—
Chinese (traditional)	拿著一把可靠的釘槍打破氣球。可以升級以創建自己的射釘哨塔。	—