Tiberium refinery (Tiberium Wars)

The Tiberium refinery was the primary resource building for Tiberium harvesting during the Third Tiberium War.

Design
Harvesters collected Tiberium from Tiberium fields and then returned to the refinery to extract it.

Changelog

 * Tiberium Wars patch 1.05:
 * sale price reduced by 70% to 300 credits
 * fixed an error that caused players to lose credits when selling Refineries or Extractors under the control of a Mastermind
 * Kane's Wrath patch 1.01:
 * cost/build time increased to $3000/30 sec
 * power requirement increased to 15 units