The Bloon Solver (BTD6)

For the upgrade in Bloons TD Battles 2, see The Bloon Solver (Battles 2).

The Bloon Solver

Bloons a problem? Here's the solution.

Tower	Glue Gunner — Path 1 — Tier 5
XP cost	37,500
Cash cost	$19,125 — Easy $22,500 — Medium $24,300 — Hard $27,000 — Impoppable

← Bloon Liquefier

The Bloon Solver is the Glue Gunner's path 1 tier 5 upgrade in Bloons TD 6. It improves the damage-over-time effect of the Glue Gunner's glue, increasing its Ceramic damage from +3 to +9 and increasing its MOAB-Class damage from +0 to +4. It also upgrades the acid puddles dropped from affected Bloons after popping, increasing puddle damage from 4 to 15.

This upgrade increases Glue Gunner's pierce from 2 to 4, lets it fire 2 globs of glue per shot instead of 1, split angularly by a 10° fixed spread, and reduces its attack cooldown by 50%, doubling its attack speed. It also makes Glue Gunner's glue globs splatter upon impact as if Glue Splatter were purchased instead of going through targets. With the 5-1-0 crosspath, the puddles gain 1 pierce for a total of 4. With the 5-0-1 crosspath, puddles carry over one round and last 9.1 seconds longer.

Stats

For a complete list of Glue Gunner stats, see Stats:Glue Gunner (BTD6).

This data was last updated for: version 55.1

Tower
Display range 46 units Footprint radius 6 units Targeting options First Last Close Strong

Attack
Cooldown 0.25s Offset (X, Y, Z) -1.4, 21.96, 7.31 Targeting Depends on targeting option Targeting range 46 units Filters Cannot target Camo Ignores Bloons with glue level: 6+
Projectile Count 2 Angle 10° Pierce 4 Max pierce 1 Speed 300 units/s Lifespan 0.43s Radius 4 units Filters Cannot hit Camo Ignores Bloons with glue level: 6+ Glue Multiplier ×0.5 Duration 11s Duration for MOAB-Class 0s Layers ∞ Glue level 6 Damage over time Damage 1 Damage to Ceramic +8 Damage to MOAB-Class +4 Damage type Acid Duration 11s Interval 0.1s Layers ∞ Glue level 6 Splat Pierce 4 Lifespan 0s Radius 12 units Filters Cannot hit Camo Ignores Bloons with glue level: 6+ Ignores blockers Glue Multiplier ×0.5 Duration 11s Duration for MOAB-Class 0s Layers ∞ Glue level 6 Damage over time Damage 1 Damage to Ceramic +8 Damage to MOAB-Class +4 Damage type Acid Duration 11s Interval 0.1s Layers ∞ Glue level 6 Puddle Pierce 3 Damage 15 Damage type Normal Lifespan 7.7s Radius 6 units Filters Cannot hit Camo Cannot hit bosses

5-1-0

Attack
Offset (X, Y, Z) -1.4, 21.96, 7.31 ↓ -3.08, 21.96, 7.31
Projectile Pierce 4 → 5 Radius 4 units → 5 units Splat Pierce 4 → 5 Puddle Pierce 3 → 4

5-2-0

Attack
Projectile Pierce 5 → 8 Splat Pierce 5 → 8 Radius 12 units → 25 units

5-0-1

Attack
Offset (X, Y, Z) -1.4, 21.96, 7.31 ↓ -3.08, 21.96, 7.31
Projectile Glue Duration 11s → 24s Damage over time Duration 11s → 24s Splat Glue Duration 11s → 24s Damage over time Duration 11s → 24s Puddle Lifespan 7.7s → 16.8s Persists between rounds 0 → 1

5-0-2

Attack
Projectile Glue Multiplier ×0.5 → ×0.25 Splat Glue Multiplier ×0.5 → ×0.25

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
5-0-0	$25,690	$30,225	$32,645	$36,270	$17,983	$21,158	$22,852	$25,389
5-1-0	$25,775	$30,325	$32,755	$36,390	$18,043	$21,228	$22,929	$25,473
5-2-0	$26,600	$31,295	$33,800	$37,555	$18,620	$21,907	$23,660	$26,289
5-0-1	$25,930	$30,505	$32,945	$36,605	$18,151	$21,354	$23,062	$25,624
5-0-2	$26,270	$30,905	$33,375	$37,085	$18,389	$21,634	$23,363	$25,960

Strategy

Solver is among the most powerful towers at its price range. It easily clears Super Ceramic Bloons, while triggering a chain effect with its puddles that deals solid damage to everything else. However, it has a weakness against high-tier blimps, such as BADs and ZOMGs, especially when no puddles have been triggered. Thus, Solver synergizes very well with The Final Harmonic, as the duo breaks open the BAD extremely quickly due to Harmonic triggering the glue's damage-over-time, and Harmonic's trance provides valuable support against ZOMGs. Carpet of Spikes also works well with Solver, breaking open high-tier blimps and allowing Solver to trigger its puddles, in addition to taking care of DDTs.

Solver is also an excellent tower in Race Events, with its glue and puddles wiping out extreme clumps of Bloons sent with ease.

On easier maps, place Solver at a spot where Bloons pass by it multiple times, allowing it to glue blimps to the front, damage them, and clean up Bloons near the back. On maps that lack these placements, Solver is best placed near the exit, as it triggers its puddles the most effectively there. 5-2-0 is the optimal crosspath for nearly all cases, as it grants extra pierce to the puddles and allows Solver to glue Bloons more reliably, while synergizing with Harmonic well enough for the BAD. 5-0-1's niche is in Boss Events, where its greater synergy with Harmonic shines and deals extreme damage to Bosses.

Update history

For a complete list of Glue Gunner changes, see Update history:Glue Gunner (BTD6).

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Version 8.0

•  DoT: Damage to Ceramics increased ― +1 → +2
•  DoT: Damage to MOAB-Class increased ― +1 → +2

Version 20.0

“

Many people seem to agree 5xx Glue is ‘good’, but simply outclassed (mainly by 5xx mortar at a similar price). This won’t completely fix that, we hope to work on making the earlier stepping stone tiers a little easier to use and provide the 520 crosspath with a better niche by making Bloon Solver benefit from all pierce twice as much (which x2x provides). — Update notes

”

•  Overall cost reduced by $1,100 (due to cost changes for previous tiers)
•  Now fires 2 projectiles per attack
•  Pierce per projectile reduced ― 12 → 6

5-1-0

•  Pierce per projectile reduced ― 13 → 7

5-2-0

•  Pierce per projectile reduced ― 16 → 11

Version 21.0

•  Overall cost reduced by $1,000 (due to cost changes for previous tiers)

Version 22.0

“

[...] a follow up reduction to The Bloon Solver’s price [...] — Update notes

”

•  Upgrade cost reduced ― $24,000 → $22,000

Version 23.0

•  Overall cost reduced by $100 (due to cost changes for previous tiers)

Version 24.0

•  Overall cost reduced by $600 (due to cost changes for previous tiers)

Version 29.0

“

Since glue gunners can’t work together as we all want them to and we could not bite that off for this update, for now have decided to do more for the top and middle paths themselves. Bloon Solver’s single target power feels like it ramps slowly on larger targets, and while it is mainly a grouped cleanup, we decided to give a nudge here with bonuses to large targets to help with higher round falloff. — Update notes

”

•  DoT: Damage to MOAB-class increased ― +2 → +3

Version 31.0

•  Bloon Solver DoT: MOAB-class bonus increased ― +3 → +5

Version 33.0

“

We want to achieve an effect with Bloon Solver’s acid burning through the layers quickly but not instantly, though we haven’t so far achieved a good balance of this along with eliminating Super Ceramics in a timely manner, causing it to be disappointing or impractical on shorter maps. To solve this while retaining the vision we have boosted the ceramic bonus up significantly along with preventing this bonus from overflowing into the children layers. — Update notes

”

•  DoT Ceramic bonus damage increased ― +2 → +8
•  DoT increased Ceramic damage will not skip through extra children layers upon breaking the ceramic layer

Version 34.0

•  Overall cost reduced by $50 (due to cost changes for previous tiers)

Version 35.0

“

We were unsure this rework would make it in at all until late and didnt want to mess around too much further before release, so we plan to make further refinements to the numbers in order to bring power properly in line with what we would like - however the long awaited mechanic rework for Relentless & Super Glue is here and we feel it is a promising start. Relentless Glue now brings some AoE stun on layer popping and glue track puddles has been reworked into a dps enhancement for the top path Bloon Solver instead of a hyper niche bottom path stalling bonus (the more ceramics the merrier!). — Update notes

”

•  Upon destroying a Bloon, now drops puddles of acid on the track
  • 20 damage
  • 1 pierce
  • 5s duration

Version 36.0

“

Our Glue rework last update wasn't quite ready soon enough to go through in depth balancing of how the new mechanics felt before release, but we still wanted to just get them out and see what people thought anyway, so this is mostly just a bit of catch up on that with fixes to crosspathing value. — Update notes

”

•  Glue puddle: Duration increased ― 5s → 7.7s
•  Glue puddle: Pierce increased ― 1 → 3
•  Glue puddle: No longer filters out glued targets

5-0-1, 5-0-2

•  Glue puddle: Duration increased ― 5s → 16.8s

5-1-0

•  Glue puddle: Pierce increased ― 3 → 4

Version 38.0

“

This is not intended to be a significant nerf to the tower’s base game performance so we plan to keep an eye on the change; however the recent top path Glue Gunner changes where duplicating every high level glued Bloon into magnitudes more puddles due to the recurring children multiplication of pre-r80 Bloons. This caused performance issues and effectively broke the game in certain situations so we have limited these puddles to spawn from the first child of glued targets to keep the lategame performance unchanged but hopefully solve the root of this issue in the early game where the main attack is mostly enough to easily deal with all cleanup anyway. — Update notes

”

•  Puddle: Now only dropped from the first child from multi-child Bloons
•  Puddle: No longer hits Camo Bloons innately

Version 43.0

“

Increased duration has limited use on upgrades that completely destroy targets anyway, so a better crosspath benefit is being added onto 401 glue puddles. Bloon Solver’s pierce is being reduced as it is over-overkill for how many Bloons you realistically see at once, but this reduction should not be noticed for most players. — Update notes

”

•  Splatter: Pierce reduced ― 5 → 4
  • Note: Total pierce reduced from 6 to 5; the initial impact can glue exactly 1 bloon

5-0-1

•  Stickier Glue crosspath allows track puddles to last +1 round

Version 44.0

•  Eject points moved for most upgrade combinations

Version 45.0

“

Top path glue struggles with large numbers of targets until T5 where it suddenly has no trouble at all, to improve earlier tier cleanup we’re taking a small amount of power out of the T5 glue puddles but improving T4 puddles and increasing attack rate across lower tiers — Update notes

”

•  Upgrade cost increased ― $22,000 → $22,500
  •  Overall cost is unchanged (due to cost changes for previous tiers)
•  Puddle: damage reduced ― 20 → 15
•  Can now take buffs without being crosspathed (bug fix)

Version 48.0

“

Bloon Solver performs a little too strong still so the MOAB Bonus is being reduced. — Update notes

”

•  DoT: bonus MOAB-class damage reduced ― +5 → +4

Version 53.0

•  Acid Puddle: Cannot longer damage Boss Bloons (undocumented)

Gallery

For more Glue Gunner images, see Gallery:Glue Gunner.

Screenshots

• 
  Bloon Solver for all crosspaths
• 
  Bloon Solver gluing bloons and leaving behind puddles

Assets

• 
  Portrait
• 
  Upgrade icon
• 
  Insta Monkey icon

Trivia

• Its name and description are a wordplay where "solve" and "solution" mean both "to resolve" and "to dissolve".
• Its ability to create glue puddles on the track were taken from Relentless Glue, which itself was likely inspired by the third upgrade of the Glue Supply Depot.

In other languages

Language	Name / Description	Notes
Arabic	حلَّال مشاكل البالونات هل تشعر أن البالونات مشكلة؟ إليك الحل.	—
Danish	Bloon-opløseren Har du et bloons-problem? Her er løsningen.	—
German	Der Bloonlöser Bloonprobleme? Wir haben die Lösung.	—
Spanish	Solucionador de bloons ¿Los bloons son un problema? Esta es la solución.	—
Spanish (LA)	Solucionador de bloons ¿Los bloons son un problema? Esta es la solución.	—
Finnish	Blooniliuotin Ovatko bloonit ongelma? Tämä liuos on ratkaisu.	—
French	Dissolveur de Bloons Les Bloons te posent un problème ? Voilà la solution.	—
Italian	Solvente per bloon Hai problemi con i bloon? Eccoti la soluzione.	—
Japanese	ブルーン溶解剤 ブルーンが問題だって？ここに解決法があるよ。	—
Korean	풍선 해결사 풍선이 문제라고요? 여기 해결사가 있습니다.	—
Dutch	De Bloon-oplosser Last van Bloons? Dit is de oplossing.	—
Norwegian	Bloonløsningen Har bloons blitt et problem? Her er løsningen.	—
Polish	Znikacz blonów Blon stanowi problem? Rozpuszczalnik go rozwiąże.	—
Portuguese (Brazil)	Dissolve Bloon Os Bloons são um problema? Aqui está a solução.	—
Russian	Решатель шаров Проблема с шарами? Вот решение!	—
Swedish	Bloonlösaren Är Bloons ett problem? Här är lösningen.	—
Thai	นักสลายลูกโป่ง มีปัญหากับลูกโป่งเหรอ นี่ล่ะคือโซลูชั่น เป็นทั้ง "ทางแก้" และ "สารละลาย" ในตัว	—
Turkish	Bloon Çözücü Bloon’lar sorun mu yaratıyor? İşte çözüm.	—
Chinese (simplified)	气球终结者 搞不定气球？这是解决方案。	—
Chinese (traditional)	氣球解決者 氣球問題？解決方法在這裏。	—
This list was last updated for: version 43.1