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Foundation
Component
A surface leveling tool. Cannot use it to change the planetary landforms at will, can only level the surface to zero altitude. If you use the foundation for high ground, you will get soil pile; on the contrary, if you use the foundation for the ocean or low-lying area, you must consume soil pile. When laying the foundation, you can choose a kind of decoration, or without decoration, only level the surface.
Summary
Foundation can flatten the surface of a planet by either leveling mountains or filling an ocean. If used to raise the land it will consume Soil Piles, but if used to lower the land it will give soil piles instead.