This prototype definition is used for the in-game achievements.
PrototypeArray<IconData>truefalseCan't be an empty array.
FileNametruefalsePath to the icon file.
Only loaded, and mandatory if icons is not defined.
SpriteSizeTypetruefalseThe size of the square icon, in pixels. E.g. 32 for a 32px by 32px icon. Must be larger than 0.
The base game uses 128px icons for achievements.
Only loaded if icons is not defined.
stringtruefalseUnusable by mods, as this refers to unlocking the achievement through Steam.
booleantruefalseIf this is set to false, it is not possible to complete the achievement on the peaceful difficulty setting or when the enemy base generation settings have been changed.