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Metal Plants

Adds various species of underground plants that can be harvested for metal ore (and one for rock crystals), the seeds are somewhat expensive and they take a long time to grow but they provide a renewable source of metal.

You can embark with the seeds and they can also be made at a farmer's workshop. Five ore will produce one seed and any ore of that metal should work. For instance you can use 3 galena and two native silver to create a silver vine seed as both are ores of silver. Each plant grows year round but takes two full seasons to grow (most underground plants only take about a half a season), once they've been harvested they can be processed at a farmer's workshop to produce one metal ore and one seed.

This mod can easily get out of hand with the amount of wealth it produces so don't come crying to me if you make a whole fort out of gold and suddenly seven hundred goblins show up on your doorstep!

This mod relies on adding reactions to the entities_default file, it doesn't overwrite anything so put it towards the end of your mod list and definitely after anything that overwrites the entities_default file. If you aren't seeing the "Create metal plant seeds" or "Process metal plant" jobs at the farmer's workshop then most likely a different mod is overwriting the entities_default file.