Promethium tweaks

Make promethium science with uranium-235. This small Space Age mod replaces 10 biter eggs with 1 uranium-235 in the promethium science pack recipe.

Uranium Promethium Science

The recipe becomes:

25 promethium asteroid chunks
1 quantum processor
1 uranium-235
Produces 10 promethium science packs, before productivity bonuses

The base crafting time remains 5 seconds. Crafting still requires a cryogenic plant on a space platform, with the normal productivity and quality rules.

Research prerequisites remain unchanged, including Biter egg handling. Other recipes and biter egg mechanics are unaffected.

Settings

Uranium Promethium Science is enabled by default. Toggle it in Settings → Mod settings → Startup and restart Factorio to apply the change.

Disable the setting to leave the recipe unchanged by this mod.

Requirements

Factorio 2.1.x
Space Age expansion, with the Space Age mod enabled

Languages

English and Czech.