| Coal mine (Research) was available in Closed beta, but does not exist in the VIP version of the game. The article is being kept for historic purposes. The VIP version of Coal mine (Research) can be found here. |
| This article is a stub. You can help by expanding it. |
| Name | Picture | Required Research Facility | Time | Gold | Prerequisites | Rewards |
|---|---|---|---|---|---|---|
| Coal Mine | 
| University 3 | ? | ? | - | Enables Coal Pit |
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