Factorio Prototype DocsVersion 2.0.72

Precision is ignored beyond two decimals - 0.567 results in 0.56 and means 56% etc. Values can range from -327.68 to 327.67. Numbers outside of this range will wrap around.

Quality values are multiplied by QualityPrototype::next_probability. For example, if a module's quality effect is 0.2 and the current quality's next_probability is 0.1, then the chance to get the next quality item is 2%.