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Speed upgrades are upgrades which drop constantly on the world map, increasing resource output from workers.

Their dropping rules can be found in detail here.

Starting from zone 1 until zone 59, the player will find:

  • Speedminer - +25% to metal generation from workers
  • Speedlumber - +25% to wood generation from workers
  • Speedfarming - +25% to food generation from workers
  • Speedscience - +25% to science generation from workers

The first three drop every zone, while Speedscience drops every two zones. This is often a cause of confusion, as players tend not to notice this.

Starting zone 60, due to broken planet, speed upgrades no longer drop, and are replaced by mega books:

  • Megaminer - +50% to metal generation from workers
  • Megalumber - +50% to wood generation from workers
  • Megafarming - +50% to food generation from workers
  • Megascience - +50% to science generation from workers

They follow the same dropping rules as speed books.

By completing Frugal, the player can increase that % from 50% to 60% to all mega books.

These bonuses are compounding with each other. They do not stack additively.

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