Factorio Auxiliary DocsVersion 2.0.55 
Auxiliary API Docs
The auxiliary docs contain long-form articles on important or advanced topics related to the modding API. They can be relevant to either or both prototype/runtime stages.
The most important of these for any modder to understand is the Data Lifecycle.
General Topics
- Data Lifecycle
- Storage
- Migrations
- Libraries
- Prototype Inheritance Tree
- Noise Expressions
- Instrument Mode
- Item Weight
JSON Docs
Defines
- alert_type
- behavior_result
- build_check_type
- build_mode
- cargo_destination
- chain_signal_state
- chunk_generated_status
- command
- compound_command
- control_behavior
- controllers
- deconstruction_item
- default_icon_size
- difficulty
- direction
- disconnect_reason
- distraction
- entity_status
- entity_status_diode
- events
- flow_precision_index
- game_controller_interaction
- group_state
- gui_type
- input_action
- input_method
- inventory
- logistic_member_index
- logistic_mode
- logistic_section_type
- mouse_button_type
- moving_state
- print_skip
- print_sound
- prototypes
- rail_connection_direction
- rail_direction
- rail_layer
- relative_gui_position
- relative_gui_type
- render_mode
- rich_text_setting
- riding
- robot_order_type
- rocket_silo_status
- selection_mode
- shooting
- signal_state
- space_platform_state
- target_type
- train_state
- transport_line
- wire_connector_id
- wire_origin
- wire_type