For the Bloons Tower Defense 5 Mobile track, see Workshop.
For the BMC Building, see Engineer Workshop.
Engineer's Workshop

Engineer's Workshop is a Specialty Building costing Monkey Dollar750; it is exclusive to Bloons Tower Defense 5 Deluxe and Bloons Tower Defense 5 Mobile. Its fourth upgrade makes the sentries larger and faster. It also makes cleansing foam pop bloons, though this effect is not listed (mobile only).


Engineer's Workshop SB

  • The first upgrade costs Monkey Dollar750. It reduces the engineer tower and upgrade price by 5%.
  • The second upgrade costs Monkey Dollar750. It increases the engineer attack speed by 10%.
  • The third upgrade costs Monkey Dollar1250 (1000 in Mobile). It allows itself and the turrets to pop lead and frozen bloons.
  • (Bloons TD 5 Mobile exclusive) The fourth upgrade costs Monkey Dollar1500. Once you buy and activate this, the engineer will build "super sentries". These are bigger sentries that shoot faster and will last longer before being destroyed.


  • Super Sentries fire twice as fast as normal sentries (3 shots per second vs 1.5), and last 50% longer (37.5 seconds vs 25). However, super sentries are built half as fast compared to normal sentries (every 20 seconds vs every 10, 6 with Fast Engineering). This means Engineers can now only have two super-sentries up at a time, lowering the purpose of the upgrade. The super sentries also aren't affected by Fast Engineering, making the upgrade worthless unless if it's to purchase Cleansing Foam or Bloon Trap.
  • There used to be no Bloonchipper in BTD5 iOS, making the Engineer's Workshop not decrease any towers' prices and upgrades, making this Specialty Building have a greater advantage.
    • This is not true as of version 2.2, as it now makes Bloonchippers more expensive.

Start a Discussion Discussions about Engineer's Workshop

  • Change Engineer's Workshop 4th Upgrade

    17 messages
    • i have a few ideas of my own: 1. Increase Super Sentries By 1 ( 3 In Total.) 2. Sentries Get A Special Ability That, If Used, Increases ...
    • Here, I made the 4th Monkey Workshop upgrade make the Monkey Engineers shoot Hydra Pod Rockets while building three times as many Super Sentrie...