Increased production

The upgrade in BTD4.

Increased Production (BTD4) or Faster Production (BTD5) is the second upgrade for the Spike Factory (BTD4) or the first upgrade of the second path (BTD5). This upgrade makes the Spike Factory produce spikes about 50% faster.


Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.