This new layer will be different from the others, it will be a small cave with stalactites and some crystals you can mine on the floor. The crystals will include Malachite (green), Azurite (blue), Chrysocolla (Cyan/Aqua), and Cuprite (Deep red), with the rarest being Cuprite. You can also rarely find traces of Marcasite (Yellow/Orange) on the stalactites.

Lmk in the comments with ideas for sell prices, new ores, generation quirks, etc.

Follow my game's development in r/geographypro_games . Game releasing soon for FREE on gx.games

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Game releasing soon on gx.games

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Game releasing soon on gx.games

Now you can sell you items. But if you get rid of too many grass tiles in the world, the salesman doesn't want to stay here anymore, lol

Music came from a user on freesound.org called "Xythe". I will credit them in the final game.

I'm planning to make the base game free on gx.games or possibly some other site once it's mostly complete.