Harnessing powers of science and magic, splashes Bloons with acid, also brews various potions with different effects.
~ Bloons Tower Defense 6 description

The Alchemist is a Magic Class tower that first appeared in Bloons TD 6. It throws potions that slowly deal damage to Bloons over time, similar to Corrosive Glue, just without the slow effect. It cannot detect Camo Bloons without aid from other towers. The Alchemist can be upgraded to generate additional income from Bloons or to support nearby monkeys, allowing them to pop Lead Bloons and do extra damage to M.O.A.B. Class Bloons. The Alchemist by itself is relatively weak and generally relies on other monkeys to truly utilize its power. Note that he can reapply his acid, refreshing the damage amount. Due to the fact that the potions can be lobbed over obstacles, the tower is able to ignore Line of Sight, and it is currently one of five non-moving towers to do so, the others being Spike Factory, Mortar Monkey, Super Monkey (Sun Temple and above), and Wizard Monkey (Guided Magic and above).

The Alchemist, like most other towers, has the appearance of a monkey, despite not having "Monkey" in the name. It wears a purple buttonless overcoat with a yellow rim and with its sleeves rolled up. It also has a pair of goggles with pink-tinted lenses and gold frames, attached by a brown strap. Strangely, the goggles are never worn directly over the Alchemist's eyes except for the Bloon Master Alchemist (x/x/5) and Unstable Concoction (x/3/x). It carries a round-bottom flask filled with red acid. In the artwork, the flask does not appear to be capped.

Upgrades[edit | edit source]

Path 1[edit | edit source]

Easy Medium Hard Impoppable Unlock

Larger Potions
Larger potions splash in a larger area.

$210 $250 $270 $300 140

Acidic Mixture Dip
Throws a potion at Monkeys, allowing them to pop Lead Bloons, do extra damage to Ceramic and MOAB-Class Bloons.

$295 $350 $380 $420 550

Berserker Brew
Special brew gives Monkeys extra damage, range, and attack speed.

$1,060 $1,250 $1,350 $1,500 2,250

Stronger Stimulant
Extra strong brew has even more powerful effect on the target.

$2,550 $3,000 $3,250 $3,600 10,000

Permanent Brew
Berserker brew becomes PERMANENT on Monkeys who drink it.

$51,000 $60,000 $64,800 $72,000 30,000
Total Sell Amount

Tier 4: $2,912

Tier 5: $30,612

Tier 4: $3,430

Tier 5: $45,430

Tier 4: $3,707

Tier 5: $49,067

Tier 4: $4,116

Tier 5: $54,516

Total Cost

Tier 4: $4,160

Tier 5: $55,160

Tier 4: $4,900

Tier 5: $64,900

Tier 4: $5,295

Tier 5: $70,094

Tier 4: $5,880

Tier 5: $77,880


Path 2[edit | edit source]

Easy Medium Hard Impoppable Unlock

Stronger Acid
Acid potions dissolve Bloons faster.

$210 $250 $270 $300 140

Perishing Potions
Attack potions deal more damage to MOAB-class Bloons and strip Fortified off smaller Bloons. Also strengthens Brews and Stimulants.

$405 $475 $515 $570 500

Unstable Concoction
Coats MOAB-Class Bloons in an explosive substance that causes a large explosion when they are popped.

$2,550 $3,000


$3,600 2,500

Transforming Tonic
Transformation ability: Turns Alchemist into powerful attack Monster for 20 seconds.

$3,825 $4,500 $4,860 $5,400 10,000

Total Transformation
Transforms five Monkeys nearby into crazy attack monsters for 20 seconds.

$38,250 $45,000 $48,600 $54,000 28,000
Total Sell Amount

Tier 4: $5,222

Tier 5: $31,997

Tier 4: $6,143

Tier 5: $37,643

Tier 4: $6,636

Tier 5: $40,656

Tier 4: $7,371

Tier 5: $45,171

Total Cost

Tier 4: $7,460

Tier 5: $45,710

Tier 4: $8,775

Tier 5: $53,775

Tier 4: $9,480

Tier 5: $58,080

Tier 4: $10,530

Tier 5: $64,530


Path 3[edit | edit source]

Easy Medium Hard Impoppable Unlock

Faster Throwing
Throws acid and potions faster.

$550 $650 $700 $780 700

Acid Pool
If no Bloons are nearby Alchemist can drench nearby track with acid.

$510 $600 $650 $720 145

Lead To Gold
Converts Lead Bloons to GOLD!

$850 $1,000 $1,080 $1,200 2,000

Rubber to Gold
Converts all Bloons partially into gold, getting more cash per pop from affected Bloons.

$2,335 $2,750 $2,970 $3,300 8,500

Bloon Master Alchemist
Secret shrink potion converts all affected Bloons into Red Bloons.

$34,000 $40,000 $43,200 $48,000 24,000
Total Sell Amount

Tier 4: $3,213

Tier 5: $27,013

Tier 4: $3,780

Tier 5: $31,780

Tier 4: $4,085

Tier 5: $34,325

Tier 4: $4,536

Tier 5: $38,136

Total Cost

Tier 4: $4,590

Tier 5: $38,590

Tier 4: $5,400

Tier 5: $45,400

Tier 4: $5,835

Tier 5: $49,035

Tier 4: $6,480

Tier 5: $54,480


Version History[edit | edit source]


  • Release

Balance Changes[edit | edit source]


  • Buff.png xx4 Rubber to Gold can now apply Rubber to Gold to all MOAB class bloons below BAD
  • Buff.png 2xx Acidic Mixture Dip now applies to the next 10 attacks rather than 9
  • Nerf.png x3x Unstable Concoction will no longer cause MOABs to damage their own children bloons


  • Nerf.png x3x Unstable Concoction will now take more pierce to hit MOABs of higher tiers, 2 pierce for MOAB/BFB, 4 pierce for ZOMG/DDT and 10 pierce for BADs


  • Nerf.png 3xx Berserker Brew & 4xx Stronger Stimulant have been redesigned, they will now function in a similar fashion to Acidic Mixture Dip and expire after 30 and 50 attacks have been performed by the applied tower. The duration remains and will prevent any new brews from being applied until it ends. (Permanent Brew still works the same)


  • Buff.png 5xx Permabrew price reduced from $80,000 to $60,000
  • Buff.png x4x Transforming Tonic price reduced from $5,000 to $4,500
  • Buff.png x5x Total Transformation price reduced from $50,000 to $45,000


  • Buff.png 5xx Permabrew Acidic Mixture Dip duration increased 10 shots to infinite
  • Buff.png x5x Total Transformation cooldown reduced 60s to 40s
  • Nerf.png x3x Unstable Concoction's % damage increase now scales until round 150
  • Buff.png 320 Berserker Brew buff shots per brew increased from 25 to 35
  • Buff.png 420 Stronger Stimulant buff shots per brew increased from 40 to 50
  • Buff.png 320 Berserker Brew duration increased from 5s to 6s
  • Buff.png 320 Berserker Brew re-application cooldown reduced from 5s to 4s
  • Buff.png 420 Stronger Stimulant duration increased from 12s to 13s
  • Buff.png 420 Stronger Stimulant re-application cooldown reduced from 5s to 4s
  • Nerf.png 3xx Berserker Brew buff shots per brew reduced from 30 to 25
  • Nerf.png 4xx Stronger Stimulant buff shots per brew reduced from 50 to 40
  • Change balloon.png Acid Pools and Faster Throwing upgrades are now swapped
  • Buff.png xx2 Acid Pools price reduced from $600 to $450
  • Nerf.png 4xx Stronger Stimulant price increased from $2,500 to $3,000
  • Nerf.png xx1 Faster Throwing price increased from $500 to $650

Bug fixes and other changes[edit | edit source]


  • Change balloon.png 2xx Acidic Mixture Dip will no longer target Obyn's Totems
  • Buff.png 2xx Acidic Mixture Dip will now allow towers to damage DDTs
  • Buff.png xx2 Acid pool will now place pools when the main attack misses
  • Nerf.pngxx5 Bloon Master Alchemist cannot damage BADs, it will now not attempt to target them
  • Buff.pngxx5 Bloon Master Alchemist can no longer softlock the game by converting bloons which have been blown off-screen
  • Change balloon.png Alchemist's Acidic Mixture Dip & Berserker Brew upgrades will now target the 5xx Village
  • Change balloon.png xx1+ Acid Pools performance issues have been resolved


  • Buff.png Permanent Brew's buff will now save on all applied towers between games
  • Buff.png Acidic Mixture Dip will no longer target Obyn's Totems or any placeable powers
  • 2xx Acidic Mixture Dip benefits subtowers by buffing their parent, so will no longer target sub towers
  • 2xx Acidic Mixture Dip will no longer target Benjamin, 3+xx Brews will if benjamin has the Trojan attack unlocked.
  • Buff.png Unstable Concoction now benefits correctly from crosspathing with top and bottom paths.
  • 3+xx Brews no longer apply their range buff twice.
  • Nerf.png Total Transformation no longer changes the footprint size of towers transformed.
  • xx5 Bloon Master Alchemist no longer gives too much cash when it converts bloons.
  • Buff.png Acidic Mixture Dip should no longer target farms.
  • Buff.png Acidic Mixture Dip now correctly allows Ice Monkeys to pop lead.
  • xx5 Bloon Master Alchemist can no longer cause the round to prematurely end.


  • Buff.png Permabrew should correctly apply when reloading save again.
  • 5xx Permabrew should no longer break in some cases after being sold.
  • Buff.png x3x and xx4 Attacks can now be thrown over obstacles.
  • Alchemist buffs should no longer miss their target and buff another tower nearby.
  • x5x Total Transformation should no longer cause crashes when used in a number of situations.
  • 2xx Acidic Mixture Dip correctly applies +1 damage to Ceramics & MOABs again
  • 5xx Permabrew will correctly apply bonus damage from Acidic Mixture Dip and both Brew & Dip buffs should save and load correctly
  • Nerf.png Acidic Mixture Dip no longer allows signal flare mortars to remove camo from DDTs
  • Nerf.png x3x Alchemist's explosion can no longer hit camo bloons
  • 5xx Permabrew's buff will no longer be removed from all buffed towers when the alchemist is crosspathed
  • x3x Unstable Concoction now works correctly
  • 3xx Lower tier brews should no longer cancel out higher tiers from upgrading the tower's buff when they target the same tower at the same time
  • Resolved an issue where Alchemist's 320 increased number of shots for Berserker Brew would read the number it should give from the wrong upgrade & give a lower number
  • x4x Transforming Tonic range buff from Strong Tonic knowledge lasts the entire duration

Gallery[edit | edit source]

Trivia[edit | edit source]

  • The Lead to Gold upgrade may be a reference to an old medieval myth where court alchemists were trying to find a way to turn base metals into gold.
  • The Rubber to Gold upgrade can turn Ceramic Bloons into Gold, which should technically be impossible since they are made of clay, not rubber.
    • However, the description says all "bloons", and the Ceramic is a bloon.
  • The Alchemist is one of four towers whose name consists of only one word, the others being Druid, Bloonchipper, and COBRA.
    • In BTD2, the Boomerang Monkey was called Boomerang.
  • Although ice and glue can be removed by tornadoes, the potions from Alchemist cannot.
  • The concept of the Alchemist is likely inspired by the Alchemist in the popularized fan-made game Bloons TD X, although the functionalities of Alchemist in BTD6 are less offense-based and more support-based.

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