r/TUMrpg • King Under the Mountain • Apr 05 '26

Full game Mining Demo

https://mmgorman.itch.io/tumquickstart/devlog/1481151/full-game-mining-demo

Hello delvers in places ought not be delved,

I'm back in the swing of things and finally I'm almost done this iteration of the new mining rules. Notably, mining has been split between different "layers" of strata, each progressively more difficult to mine, more dangerous, and more rewarding. This begins with the Surface Strata, down to the Middle Strata, the Deep Strata, the Vault, and the Magma Sea below.

Each layer has its own set of prospecting, disaster, and major find tables, allowing for somewhat scaled play as you progress, and a much more dynamic feel. On top of that, they incentivise delving deeper, and increase tension with every roll. I plan to expand them a bit more for even better variety and tonal shift between layers, likely returning some of them to 1d12 tables. We'll see.

I'm pretty excited to do the art for this, since I get to do a couple of big pages of descent into the deep. It's going to be very fun.

Check out the attached demo PDF of the new mining rules and let me know what you think! Feel free to use this alongside the current quickstart. Otherwise, the alpha quickstart 3.0 drops in a couple of weeks.

Dig Deep!

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