Special resources are favorable conditions that may be found on certain tiles on a planet. Building a planetary improvement on a special resource will see that improvement receive a bonus based on the type of resource it is. Note that the bonus increases the capacity of the improvement, not necessarily its output. For example, a manufacturing improvement built on Rare Elements (+300% industry) will also require +300% BCs to be spent. So you should NOT think of these bonuses as "buy one improvment, get 1 (or 3 or 7) free".
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Mystic Spring | +100% Approval |
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Ruins | +100% Influence |
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Fertile Soil | +100% Food |
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Splendid Soil | +300% Food |
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Mineral Deposit | +100% Industry |
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Rare Elements | +300% Industry |
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Precursor Mine | +700% Industry |
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Artifacts | +100% Research |
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Precursor Artifact | +300% Research |
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Precursor Library | +700% Research |
Notes[]
- These bonuses apply ONLY to the project/improvement built on them, not to the whole colony.
- These bonuses DO NOT apply to fractional bonuses like those from most Super Projects (including 'capitals'), nor do they affect Trade Goods or Galactic Achievements.