Popped Bloons that were glued leave a blob of glue on the track.
~ BTD6 Description


Relentless Glue is the fourth upgrade of Path 3 for the Glue Gunner in BTD6. It allows bloons to leave a blob of glue on the track upon being popped. Blobs left on the track will last for 5.0 seconds before disappearing. Although this is an upgrade from the MOAB Glue upgrade, the track blobs do not affect MOAB-class bloons, which simply mop up any blobs they encounter. On the other hand, the blobs do affect camo, even though the original projectiles do not.

It costs $2,550 on Easy, $3,000 on Medium, $3,240 on Hard, $3,600 on Impoppable.

Strategies[edit | edit source]

Summary[edit | edit source]

Relentless Glue is another method for the Glue Gunner to counteract its initial lack of proficiency against large groups of bloons, in that it can coat one bloon and transmit to a second target once it is popped. This is crucial, as it allows the Glue Gunner to benefit from the prior upgrade MOAB Glue.

In tandem with its slowing prowess to normal and MOAB-Class Bloons, Relentless Glue allows for the solidification of a good chokepoint where bloons are rapidly destroyed from tower fire, creating more glue blobs on the track to slow those that sneak through. In essence, an effectively used Relentless glue combines the powers of all three paths, being longer and slowing more, soaking through layers, and hitting multiple bloons.

Tips[edit | edit source]

  • Relentless Glue virtually requires Glue Soak to function, as the bloon must be glued as it is popped to leave a glob behind, and because of the slower and more widespread gluing, Corrosive Glue can actually deal some decent damage.
    • A 0-2-4 glue is virtually a waste of this upgrade, as the puddles will almost never be produced, and can only function in extremely niche circumstances, such as combining with high layer towers (which can be considered to be quite rare or expensive) such as Snipers to instantly pop glued bloons.
  • Like all Glues, it works best at the start of the track, however, it is actually beneficial to leave its targeting to First, as it can then glue most bloons behind the first bloon. This is particularly effective in rounds that open with weaker, faster bloons such as pinks or purples.
  • Always combo with Primary Training when possible, as the tower is a lot more effective with even a single extra pierce. It also works surprisingly well in tandem with Alchemist buffs.
  • The tower tends to face competition from Glue Hose and MOAB Glue as both have access to much higher pierce with Glue Splatter. This tower may be useful to allow for camo support or for greater coverage in terms of range, but it is also slower to glue incoming bloons as it relies on the first few bloons to be popped.

Gallery[edit | edit source]

Trivia[edit | edit source]

  • Relentless Glue is likely inspired by the third upgrade of the Glue Gunner's Specialty Building, the Glue Supply Depot.
  • In Bloons Tower Defense 6, this is the only way a Glue Gunner can glue Camo Bloons without support and abilities.
  • Relentless Glue, Double Gun (and by extension, Bloon Trap and XXXL Trap), and Robo Monkey are the only towers to be holding a pair of guns.
    • Strangely enough, Relentless Glue neither attacks faster nor attacks two separate projectiles per shot. It also doesn't have bonus popping power either.
  • The description for Relentless Glue was notorious for its poor grammar mistake, as noted by a number of players. Before Version 20.0, the description was "Popped Bloons that were glued, leave a blob of glue on the track." with the erroneous comma.
    • As of Version 22.0, the comma was removed.
  • According to an NK blog post, the original idea for Relentless Glue was that it would leave blobs of glue for every layer of Bloon popped. It was deemed too overpowered and lowered the game's performance, and was rebalanced before release.
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