From Official Factorio Wiki
Revision as of 12:14, 2 June 2018 by Bilka (talk | contribs) (General properties: note about names with numbers)
Jump to: navigation, search


More in Research

General properties

Inherits all properties from Prototype.

icons, icon, icon_size (IconSpecification)

Type: Types/IconSpecification


See Prototype#name

Inherited from Prototype. If the name ends with -number, the number is ignored for localization purposes. E. g. if the name is whatever-name-3, the game looks for the technology-name.whatever-name localization. The technology tree will also show the number on the technology icon.

Technology data

If the technology does not have a difficulty, this is located directly in the prototype. Otherwise, if the "normal" or "expensive" property exists, the technology has difficulty. Then, the technology data has to be specified for each difficulty instead of directly in the prototype. If at least one difficulty has technology data defined, the other difficulty can be set to false. This will give it the exact same properties as the difficulty that is defined.


Type: Types/bool

Default: false

When set to true, and the technology contains several levels, only the relevant one is displayed in the technology screen.

    type = "technology",
    name = "rocket-damage-2",
    upgrade = "true"


Type: Types/bool

Default: true


It contains

  • count — Types/double — How many units are needed. Must be positive.
  • count_formula — Types/string — Formula that specifies how many units are needed per level of the infinite technology. May not be specified if count is speficied.
  • time — Types/double — How much time is needed per one unit, in lab with crafting speed 1 it is the number of seconds.
  • ingredients — list of ingredients needed for one units
 unit =
   count = 20,
   time = 5,
   ingredients = { ["science-pack-1"] = 1 }


Type: Types/uint or Types/string

Default: Same as the level of the technology, which is 0 for non-upgrades, and the level of the upgrade for upgrades.

"infinite" for infinite technologies, otherwise uint.


List of technologies needed to be researched before this one can be researched.

 prerequisites = {"explosives", "military-2"}


Type: Modifier List of effects of the technology (applied when the technology is researched).

   type  = "unlock-recipe",
   recipe = "land-mine"