DynEco

Prices are not typed in by hand for most items. DynEco reads the recipe graph of the loaded pack, including crafting, smelting and machine recipes from mods such as Modern Industrialization, Mekanism, EnderIO and Create-style processing, and derives a value for each item. A small set of base materials carry hand-set values, such as an iron ingot at 120 and a diamond at 1500, and every other item is priced from its cheapest known route, with a slight surcharge for the work involved. A bronze plate, for example, costs the bronze plus a little for pressing it.

Once running, the economy moves prices with trade. Selling large amounts of iron makes it cheaper, buying out diamonds makes them more expensive, and prices drift back toward their baseline over a few days. A tablet lists what each item is worth and can be used with shop signs, while the config file holds a spreadsheet of tens of thousands of item prices. Fluids are charged per bucket, so a machine recipe using a fluid pays for the amount it consumes. Catalysts are not consumed in recipes, and packer templates and moulds cost nothing.

The mod runs on NeoForge only. Files exist for 1.21.1 – 1.21.11, with 1.2.0 for 1.21.11 as the latest file, published 2026-09-12. The server and every player need the mod installed. The mod is released under All rights reserved. A self-check runs on world load and logs any problems it finds.