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The Ore Refinery is an important structure for the Epsilon as it is necessary for them to gather resources.

Official description

The Ore Refinery is a technologically complex building completely outfitted to receive and process raw ore from miners, turn it into valuable metals and alloys, and instantly receive monetary transactions for other products while on the battlefield. This makes this structure a vital asset to base economy.[1]


For a detailed list of differences from the Slave Miner in the original game, click here.

Replacing the Slave Miner from the vanilla game in favor of more traditional Ghost Miners, the Epsilon Ore Refinery is not unlike the other Ore Refineries; it is essential in order for their Ghost Miners to deposit the precious ore and gems required to begin and maintain the production of Epsilon's unorthodox armies and foundations. While there is no limit to how much a proselyte can store ore (and in turn, funds), additional Refineries should be constructed if the Ghost Miners become too numerous that they have to wait until the Ghost Miner unloading the resources, or if the proselyte has recently acquired a Tech Base Expansion Post that is close to an ore/gem field so that the money keeps flowing.

Even though Ghost Miners are normally invisible, an enemy commander can notice their presence near the Epsilon Ore Refinery if smoke suddenly comes out of the exhaust pipes, indicating a miner has deposited ore into the refinery.

Unlike the other factions however, the Epsilon's economy is not easy to disrupt, as even if their Refineries are destroyed, they are able to turn units (whether mind-controlled or loyal to Yuri's cause) into resources via a Grinder.

AI behavior

The AI will only build a maximum of 3 Ore Refineries on all difficulties.


Act Two

  • The Epsilon Ore Refinery makes its debut as a buildable structure in The Conqueror alongside other Epsilon buildings.
  • In Earthrise, the Epsilon Ore Refinery is locked due to the lack of ore on the Moon. If captured the Epsilon base, all tech options that require Ore Refinery to unlock except the Ghost Miner are get the Ore Refinery prerequisite neglected.

Special Ops

  • Chronologically, the Epsilon Ore Refinery (then identified only as an Unknown Structure) first appears in the Foehn Special Ops mission Time Capsule. Notably, the nearby ore patch is mined by Workers instead of Ghost Miners, which is a reference to the Slave Miner from the original game. If the Ore Refinery is destroyed, all Workers will mutate into Brutes.

Behind the scenes

The artwork of this building by MadHQ is a public asset and can be used by other modders. The link can be found here (called Yuri Refinery).

See also