queenpea
Emperor
It's very odd that you cannot build Terrace Farms on regular farm tiles. The Terrace Farm is a unique improvement which adds a farm on a rough tile. This means your settlement has to first improve a rough tile (adjacent to a mountain) into a mine. Then the farm can be built over the mine.
To summarize: you cannot build Terrace Farms on farms or woodcutters that are adjacent to mountains. This is very strange in game and doesn't make much sense at all (outside of the strange unique improvement mechanics of Civ VII).
I am finishing a game of Inca now, and the opportunities to build Terrace Farms are pretty few and far between. Often times, rough tiles adjacent to mountains are taken up by resource tiles which cannot be built over. I have a pretty large empire of three settlements over the settlement cap (15 or 16 settlements total), and maybe I have six Terrace Farms placed in my entire empire.
To summarize: you cannot build Terrace Farms on farms or woodcutters that are adjacent to mountains. This is very strange in game and doesn't make much sense at all (outside of the strange unique improvement mechanics of Civ VII).
I am finishing a game of Inca now, and the opportunities to build Terrace Farms are pretty few and far between. Often times, rough tiles adjacent to mountains are taken up by resource tiles which cannot be built over. I have a pretty large empire of three settlements over the settlement cap (15 or 16 settlements total), and maybe I have six Terrace Farms placed in my entire empire.