For the BTD5 version of this upgrade, see Sprockets (BTD5).
Increases sentry gun and Engineer attack speed.
~ Official Bloons TD 6 description.

Sprockets is the third upgrade of path 1 for the Engineer Monkey in Bloons TD 6. It allows the Engineer's nailgun and sentries to attack 66% faster. Sentries are still deployed every 6.0s. Just as with normal sentries, sentries from Sprockets can gain crosspathing benefits from any Tier 1 crosspath and can gain bonus MOAB-class and Fortified damage from the Deconstruction crosspath.

It costs $445 on Easy, $525 on Medium, $565 on Hard, and $630 on Impoppable.

Strategies[edit | edit source]

Summary[edit | edit source]

Sprockets primarily focuses on improving firepower via Engineer sentries. This makes the Sprockets Engineer a decent early-game advancement option in the game. Combining the Engineer's own range with his sentries, the Sprockets Engineer has rather good overall combined range and DPS for its price.

Tips[edit | edit source]

  • Adding Sprockets can allow the whole Engineer and his sentries to easily solo versus rounds with lots of Yellows and/or Pinks, where normally other sentry-based Engineers would struggle.
  • Generally, the 3-0-2 crosspath is better than the 3-2-0 crosspath. The Pin helps the Engineer, while the Oversize Nails increases pierce.

Version History (BTD6)[edit | edit source]

12.0 (Engineer update)

Nerf.png Pierce of Sentry Gun decreased (2 --> 1)

  • Buff.png Standard Sentry pierce increased from 1 to 2

Gallery[edit | edit source]

Trivia[edit | edit source]

  • In BTD6, a 3-0-0 Sprockets costs exactly $2020 on Hard Difficulty.

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