Synergy

Synergies or Tower Combos are combinations of two or more towers that are extremely effective at damaging bloons, acquiring income, or some other specific task. As opposed to amassing a large number of towers, or giving a single tower a ton of buffs, synergies are usually characterized by high cost efficiency, good coverage of certain damage needs (such as single target damage and grouped popping power), and the ability to pop most Bloon types. This is due to the individual towers excelling in different use cases, thus being able to cover each other's weakness while excelling in their own strengths.

In terms of Bloon TD 6, synergies are most relevant in gamemodes like C.H.I.M.P.S. and half-cash where effective tower combinations can survive long stretches of rounds, allowing the player to amass money for an expensive late game upgrade (which may belong to the synergy itself). In fact, some synergies are so effective that they can remain relevant, or even manage to survive, during late game/freeplay rounds, as is evident in 2-Tower C.H.I.M.P.S (2TC).

An example of an effective synergy is the Prince of Darkness and M.A.D. as the latter has strong M.O.A.B popping power but struggles against spaced Bloons like Super Ceramics due to its low rate of fire. The Prince of Darkness covers this weakness by casting a powerful graveyard that suppresses even the densest Bloon rushes. This powerful combo has been used for 2TC.

This page lists some towers that synergize with nearly every other tower in the game, as well as some more specific combos. It is by no means a comprehensive list.

When it comes to cross-pathing, assume that all towers stated have no cross-paths other than the upgrade that is being stated. (X-0-0, 0-X-0, and 0-0-X)

What is a "Synergy"?
What makes a tower combo a "synergy" rather than a simple benefit is by obtaining unique advantages from working well together that the two (or more) cannot simply achieve alone. Sometimes, there are secondary benefits for Tower A that are special to that tower and its interaction with Tower B (e.g. Spiked Balls attacking slow enough to sustain both Bbrew's buffs, the brew and its AMD).

Tower synergies are categorized into distinct types:


 * Mutual - Tower A is directly benefited by the actions of Tower B, and Tower B is directly benefited by actions of Tower A. Mutual synergies help each other's weaknesses while fulfilling their strengths together. An example of this is M.A.D. + Prince of Darkness.
 * One For The Other - Tower A is directly benefited by actions of Tower B, which makes Tower A become much stronger, but Tower A's assistance for Tower B is minor or absent. Most purely buff-oriented towers in combination with an offensive tower (such as the Alch buff in combination with Bloonjitsu) are classified under this category.
 * Indirect - Tower A indirectly helps compensate for the perceived weaknesses of Tower B. Together, this results in them helping each other but not directly together. For example, Crossbow + Churchill is considered indirect, as Crossbow helps save up for Churchill, but Crossbow doesn't necessarily help Churchill while in battle.

This article mostly covers synergies classified as "Mutual" or "One For The Other".

Universal Synergies
See also: Buffs

The following are some towers that synergize well with most towers. In most cases, these towers are simply able to provide buffs with other towers. Consider adding them to any of the specific combos in the following sections.

Specific Combinations
The following are a list of synergies of two or three different towers. For the purposes of what defines a "synergy" in this article, the "first" tower type refers to the main tower type involved by being assisted from the "second" tower type, or also the "third" tower type if the third one is involved in a very specific synergy.

Path 1 (Dart Monkey)
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Path 2 (Heli Pilot)
Support Chinook can carry Permanent Brew around the map, allowing it to buff all towers.

Quincy
Notable synergies with Quincy are listed in this section.

Gwendolin
TBA

Obyn Greenfoot
TBA

Captain Churchill
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Benjamin
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Ezili
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Pat Fusty
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Adora
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Admiral Brickell
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Etienne
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Sauda
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