Howdy GMs and Happy New Year. Our playgroup is transitioning to the new 2024 rules and we want to start playing around with Bastions (because of course). :) We've been playing for quite a while, and over the course of the adventures, the group has gained ownership of a dwarven gemstone mine and attached underground structures. So do you guys have any balanced and interesting ideas for homebrewing a Mine Special Facility to use with the Bastion rules?

Thanks. <3

I’d maybe re-skin the storehouse. They put some money into it (flavor as supplies for the miners) and get back some higher percentage. Maybe 1/bastion turn make a roll to see if they pull out a gem that can work as a spell component. 

Or, if you want to let them get better stuff, maybe-skin garden or greenhouse. And then the stuff they pull out they can use for crafting. Maybe they find a vein of Mithril or adamantium or something. 

But as a gemstone mine, I’d stick with the first one. 

 I ended up doing this:

Gemstone Mine

Level 9 Bastion Facility

Prerequisite: None

Space: Vast

Hirelings: 4

Order: Trade

A Gemstone Mine searches for and produces various valuable gems of different rarities.

Trade: Gemstone Mine When you issue the Trade order to this facility, the facility’s hirelings work hard in the mines, searching for valuables.. At the end of the tenday, roll 1d100 and consult the following table to determine your findings.