Converts Lead Bloons to GOLD!
~ Bloons Tower Defense 6 description.

Lead to Gold is the third upgrade of Path 3 for the Alchemist in Bloons TD 6. As stated in its name, it turns Lead Bloons into Gold when attacked by this Alchemist's acid attacks, rewarding with $50 cash once the lead layer becomes popped.

It costs $850 on Easy, $1000 on Medium, $1080 on Hard, and $1200 on Impoppable.

Strategies[edit | edit source]

Lead to Gold causes the Alchemist to be able to generate a secondary income to popping bloons when combating Leads, granting $50 for every Lead bloon popped while coated with the acid from an Alchemist with this upgrade. Regular Lead bloons earn money immediately, as they are popped by the acid, while Fortified Leads will earn money upon being popped, regardless of what tower dealt the final blow. While the upgrade is 20% cheaper than even a Banana Farm, the upgrade is best used based on context of the round and the towers behind the Alchemist; too few Leads, and the upgrade is unprofitable, too many towers that can already pop Leads and the Alchemist is unable to profit from the remaining bloons.

To make sure that the Alchemist gets to Lead Bloons first before the other towers, placing him at the beginning of the track allows for more time before other Lead popping towers can even have the Leads in their range.

In Magic Monkeys Only games, it can be considered as the primary Lead popping source to be both reliable, profitable and having little competition when using other Magic Monkeys with proper upgrades. However, the one game mode where Lead to Gold shines the brightest is on Apopalypse, where dense groups of Leads are bound to appear often. In some cases, it can be even more profitable than using Banana Farms.

Some of the more devastating competition for the practicality of this upgrade are towers with high range or splash that can take out Leads, such as Super Monkeys with Plasma Vision or higher and Bomb Shooters following its first or third paths.

The most devastating tower to compete with, however, is Obyn Greenfoot, as he is cheap, often used at the start of the game, boosts the Magic class to interfere with Magic Monkeys Only games and has a long reaching Lead popping attack. Being able to pop the Lead layer of the first bloons is possible with ideal positioning, but since Obyn's attacks typically follow the track against the bloons, it can lead to the resulting Black Bloons to receive fire and pop the new Leads before the Alchemist has the chance to.

Earnings[edit | edit source]

Lead to Gold is only effective on rounds with Lead Bloons. On Easy, it takes 17 Lead bloons to earn back the cost of the upgrade. Medium takes 20, Hard takes 22, and Impoppable takes 24. Below is a table listing all of the rounds with Lead Bloons, how many are in each round, and the maximum possible earnings from each round.

Round Maximum Money Earned Number of Leads per round
28 300 6 Lead
30 450 9 Lead
37 750 15 Lead
38 700 14 Lead
45 200 4 Fortified Lead
50 400 8 Fortified Lead
59 2500* 50 Lead Camo
63 3750 75 Lead
69 2000 40 Fortified Lead
75 1400 14 Leads, 14 Fortified Lead
90 2500* 50 Fortified Lead Camo Regrowth
95 12500* 250 Fortified Lead Camo Regrowth
163 Random Random Leads (Bloons may have Fortified, Regrowth, or Camo)

Alternate Bloon Rounds[edit | edit source]

Round Maximum Money Earned Number of Leads per round
10 100 2 Lead
23 200 4 Lead
24 50* 1 Lead Camo
28 300 6 Lead Regrowth
30 450* 9 Lead Camo
37 900 18 Lead
38 700 14 Lead
44 500 10 Fortified Lead
45 200 4 Fortified Lead
48 750 15 Fortified Lead Regrowth
50 400 8 Fortified Lead Regrowth
59 2500* 50 Lead Camo Regrowth
61 400 8 Fortified Lead
62 750* 15 Fortified Lead Camo Regrowth
75 28200 550 Lead, 14 Fortified Lead

*The money earned on these rounds may only be obtained if the Alchemist is given Camo detection by another tower, or the camo properties are stripped without popping the bloons with upgrades such as Shimmer or Submerge and Support.

Gallery[edit | edit source]

Trivia[edit | edit source]

  • The upgrade is a reference to alchemy and the Philosopher's Stone, which turns base metals into precious gold, as seen with how the upgrade works.
    • Alchemy is the ancient protoscience of transforming and purifying materials, often to create gold. However alchemy far from scientific, as many of its core tenets and goals are simply nonsensical.
  • Acid pools created by this Alchemist from the Acid Pool upgrade will also trigger the $50 cash reward from popping leads.
    • The same applies to Rubber to Gold, but only works on Leads and does NOT automatically turn other bloons partially to gold unless the potion directly hits the targeted Bloon.
  • The Lead to Gold Alchemist or its subsequent upgrades do not have to make the final pop in order to activate the $50 per lead effect; it just has to damage the bloon at least once, which is evident for Fortified Leads. Link.
  • Even though Version 19.0 added a separate money counter for almost all towers, it has not been yet implemented for Lead to Gold, Rubber to Gold, Monkey Town (and by extent Monkey City), Pirate Lord, Support Chinook, and Jungle's Bounty. It has yet to be fully implemented for Spirit of the Forest (ability only), and Sun Temple and True Sun God / Avatar of the Vengeful Monkey with Support sacrifices.
  • Lead to Gold's $50 is not increased by 10% by the Monkey City's income boost.
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