Currency and Economy mod
This mod, originally by Dan Duncombe, provides barter tables, safes, exchange shops, and multiple denominations of currency, called "Minegeld", which is shown at the bottom of the above image.
There are 5, 10, and 25-cent Minegeld coins, and 1, 5, 10, 50, and 100 Minegeld notes.
The safe is basically a locked chest with a different texture and a smaller inventory.
While playing, the mod will "pay" you 10 Mg per in-game day as long as you have dug or built something. This works on servers too - any user who is actively playing will get paid. This "daily salary" only occurs when the game/server is in survival mode.
The mod provides craft recipes to exchange between different denominations (so long as neither side of the exchange is more than 9 items), so you could for example "break" a 1 Mg note into four 25-cent coins, or swap five 10 Mg notes for a 50 MG note.
At the far right in the above image is a bundle of random Minegeld notes, which can be burned. You get these by crafting 9 Minegeld notes of any denomination. This act is analogous to taking worn currency out of circulation. Coins cannot be combined in this manner.
Pipeworks tubes can be used to manage the inventory of an exchange shop.
License: LGPL 3.0 for the code, CC-by-SA 4.0 for media and everything else.
Dependencies: A recent Minetest engine and minetest_game default.
Download: https://gitlab.com/VanessaE/currency/-/ ... master.zip
...or browse the code: https://gitlab.com/VanessaE/currency