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Project Zomboid Knowledge Base (B41 & B42)

Unofficial fan reference — not affiliated with The Indie Stone

This is an unofficial, community-produced research reference. It is not affiliated with, endorsed by, or sponsored by The Indie Stone. Project Zomboid and all related content are trademarks and copyrights of The Indie Stone. Every document carries a build tag (B41 / B42 / both); the game moves fast — verify against the current patch notes and in-game behaviour before relying on any value.

Evidence-based, source-cited Project Zomboid reference for modders, players, server admins and creators — every document version-tagged for Build 41 (legacy41) and Build 42.

41 documents across 34 topics — every factual claim carries a citation to a primary or authoritative source, unverified community claims are labelled and quarantined, and build tags, links, citations and structure are checked automatically in CI.

Confidence: 2 High · 39 Medium · 0 Low. Build: B41 1 · B42 8 · both 30 · historic 2.

Class 1 — Track foundations (Modders / Players / Admins / Creator)

Class 2 — Core reference (mechanics, entities, API, settings)

Class 3 — Guides, tutorials & runbooks

Class 4 — Meta, lore & creator strategy

Knowledge graph

Cross-reference graph (click to expand)
graph LR
  subgraph Tier1["Tier 1"]
    admins_foundation["admins-foundation"]
    creator_foundation["creator-foundation"]
    lore_foundation["lore-foundation"]
    meta_style_guide["meta-style-guide"]
    modders_foundation["modders-foundation"]
    players_foundation["players-foundation"]
  end
  subgraph Tier2["Tier 2"]
    admins_backups_migration["admins-backups-migration"]
    admins_performance_tuning["admins-performance-tuning"]
    admins_rcon_commands["admins-rcon-commands"]
    admins_sandboxvars_reference["admins-sandboxvars-reference"]
    admins_server_ini_reference["admins-server-ini-reference"]
    admins_workshop_mod_wiring["admins-workshop-mod-wiring"]
    creator_channel_competitor_map["creator-channel-competitor-map"]
    creator_cross_promotion_funnel["creator-cross-promotion-funnel"]
    creator_format_catalogue["creator-format-catalogue"]
    modders_events_callbacks["modders-events-callbacks"]
    modders_item_scripts_distributions["modders-item-scripts-distributions"]
    modders_lua_api_surface["modders-lua-api-surface"]
    modders_modinfo_modid_conventions["modders-modinfo-modid-conventions"]
    modders_modoptions_pzapi["modders-modoptions-pzapi"]
    modders_mp_networking_porting["modders-mp-networking-porting"]
    players_animals_husbandry["players-animals-husbandry"]
    players_crafting_chains["players-crafting-chains"]
    players_farming_food["players-farming-food"]
    players_map_locations["players-map-locations"]
    players_medical_moodles["players-medical-moodles"]
    players_skills_xp["players-skills-xp"]
    players_traits_occupations["players-traits-occupations"]
    players_vehicles["players-vehicles"]
  end
  subgraph Tier3["Tier 3"]
    admins_legacy41_runbook["admins-legacy41-runbook"]
    admins_modded_server_runbook["admins-modded-server-runbook"]
    admins_ubuntu_runbook["admins-ubuntu-runbook"]
    creator_content_calendar["creator-content-calendar"]
    modders_first_mod_tutorial_b42["modders-first-mod-tutorial-b42"]
    modders_porting_b41_to_b42["modders-porting-b41-to-b42"]
    players_b41_to_b42_transition["players-b41-to-b42-transition"]
    players_beginner_guide_b42["players-beginner-guide-b42"]
  end
  subgraph Tier4["Tier 4"]
    lore_in_world_media["lore-in-world-media"]
    lore_knox_event_timeline["lore-knox-event-timeline"]
    meta_release_versioning_policy["meta-release-versioning-policy"]
    meta_source_registry_companion["meta-source-registry-companion"]
  end
  meta_style_guide -->|governs| modders_foundation
  meta_style_guide -->|governs| players_foundation
  meta_style_guide -->|governs| creator_foundation
  meta_style_guide -->|governs| lore_foundation
  meta_style_guide -->|governs| admins_foundation
  players_foundation -->|complements| modders_foundation
  players_foundation -->|complements| creator_foundation
  players_foundation -->|complements| lore_foundation
  players_foundation -->|complements| admins_foundation
  players_foundation -->|conforms_to| meta_style_guide
  lore_foundation -->|informs| players_foundation
  lore_foundation -->|informs| modders_foundation
  lore_foundation -->|informs| creator_foundation
  lore_foundation -->|informs| admins_foundation
  lore_foundation -->|conforms_to| meta_style_guide
  modders_foundation -->|relates_to| players_foundation
  modders_foundation -->|relates_to| creator_foundation
  modders_foundation -->|relates_to| lore_foundation
  modders_foundation -->|relates_to| meta_style_guide
  modders_foundation -->|relates_to| admins_foundation
  creator_foundation -->|complements| modders_foundation
  creator_foundation -->|complements| players_foundation
  creator_foundation -->|complements| lore_foundation
  creator_foundation -->|complements| admins_foundation
  creator_foundation -->|conforms_to| meta_style_guide
  admins_foundation -->|related| players_foundation
  admins_foundation -->|related| modders_foundation
  admins_foundation -->|related| creator_foundation
  admins_foundation -->|related| lore_foundation
  admins_foundation -->|conforms_to| meta_style_guide
  players_skills_xp -->|deepens| players_foundation
  players_skills_xp -->|relates_to| players_traits_occupations
  players_skills_xp -->|relates_to| players_crafting_chains
  players_skills_xp -->|relates_to| players_animals_husbandry
  players_skills_xp -->|conforms_to| meta_style_guide
  players_traits_occupations -->|deepens| players_foundation
  players_traits_occupations -->|related| players_skills_xp
  players_traits_occupations -->|related| players_crafting_chains
  players_traits_occupations -->|related| players_animals_husbandry
  players_traits_occupations -->|conforms_to| meta_style_guide
  players_crafting_chains -->|deepens| players_foundation
  players_crafting_chains -->|relates_to| players_skills_xp
  players_crafting_chains -->|relates_to| players_traits_occupations
  players_crafting_chains -->|complements| players_animals_husbandry
  players_crafting_chains -->|informs| modders_foundation
  players_crafting_chains -->|conforms_to| meta_style_guide
  admins_sandboxvars_reference -->|deepens| admins_foundation
  admins_sandboxvars_reference -->|complements| admins_server_ini_reference
  admins_server_ini_reference -->|deepens| admins_foundation
  admins_server_ini_reference -->|complements| admins_sandboxvars_reference
  admins_server_ini_reference -->|complements| modders_foundation
  admins_server_ini_reference -->|complements| meta_style_guide
  players_animals_husbandry -->|deepens| players_foundation
  players_animals_husbandry -->|relates_to| players_skills_xp
  players_animals_husbandry -->|relates_to| players_crafting_chains
  players_animals_husbandry -->|relates_to| players_traits_occupations
  players_animals_husbandry -->|conforms_to| meta_style_guide
  players_map_locations -->|deepens| players_foundation
  players_map_locations -->|relates_to| lore_foundation
  players_map_locations -->|relates_to| meta_style_guide
  players_map_locations -->|relates_to| players_vehicles
  players_vehicles -->|deepens| players_foundation
  players_vehicles -->|related| players_skills_xp
  players_vehicles -->|related| players_map_locations
  players_vehicles -->|conforms_to| meta_style_guide
  admins_rcon_commands -->|deepens| admins_foundation
  admins_rcon_commands -->|complements| admins_server_ini_reference
  admins_rcon_commands -->|complements| admins_sandboxvars_reference
  admins_rcon_commands -->|conforms_to| meta_style_guide
  admins_backups_migration -->|deepens| admins_foundation
  admins_backups_migration -->|references| admins_server_ini_reference
  admins_backups_migration -->|references| admins_sandboxvars_reference
  admins_backups_migration -->|references| lore_foundation
  admins_backups_migration -->|references| meta_style_guide
  admins_performance_tuning -->|deepens| admins_foundation
  admins_performance_tuning -->|complements| admins_server_ini_reference
  admins_performance_tuning -->|complements| admins_sandboxvars_reference
  admins_performance_tuning -->|complements| meta_style_guide
  players_medical_moodles -->|deepens| players_foundation
  players_medical_moodles -->|cross_references| players_skills_xp
  players_medical_moodles -->|cross_references| admins_sandboxvars_reference
  players_medical_moodles -->|conforms_to| meta_style_guide
  players_b41_to_b42_transition -->|deepens| players_foundation
  players_b41_to_b42_transition -->|cross_references| players_skills_xp
  players_b41_to_b42_transition -->|cross_references| players_traits_occupations
  players_b41_to_b42_transition -->|cross_references| players_crafting_chains
  players_b41_to_b42_transition -->|cross_references| players_animals_husbandry
  players_b41_to_b42_transition -->|cross_references| players_medical_moodles
  players_b41_to_b42_transition -->|cross_references| players_map_locations
  players_b41_to_b42_transition -->|cross_references| players_vehicles
  players_b41_to_b42_transition -->|conforms_to| meta_style_guide
  players_farming_food -->|deepens| players_foundation
  players_farming_food -->|complements| players_animals_husbandry
  players_farming_food -->|relates_to| players_crafting_chains
  players_farming_food -->|relates_to| players_skills_xp
  players_farming_food -->|conforms_to| meta_style_guide
  admins_legacy41_runbook -->|deepens| admins_foundation
  admins_legacy41_runbook -->|cross_references| admins_backups_migration
  admins_legacy41_runbook -->|cross_references| admins_server_ini_reference
  admins_legacy41_runbook -->|related| lore_foundation
  admins_legacy41_runbook -->|conforms_to| meta_style_guide
  admins_sandboxvars_reference -->|informs| players_foundation
  admins_sandboxvars_reference -->|conforms_to| meta_style_guide
  admins_ubuntu_runbook -->|deepens| admins_foundation
  admins_ubuntu_runbook -->|complements| admins_server_ini_reference
  admins_ubuntu_runbook -->|complements| admins_backups_migration
  admins_ubuntu_runbook -->|related| admins_workshop_mod_wiring
  admins_ubuntu_runbook -->|related| admins_modded_server_runbook
  admins_ubuntu_runbook -->|conforms_to| meta_style_guide
  admins_workshop_mod_wiring -->|deepens| admins_foundation
  admins_workshop_mod_wiring -->|deepens| admins_server_ini_reference
  admins_workshop_mod_wiring -->|deepens| modders_foundation
  admins_workshop_mod_wiring -->|related| admins_modded_server_runbook
  admins_workshop_mod_wiring -->|related| admins_ubuntu_runbook
  admins_workshop_mod_wiring -->|conforms_to| meta_style_guide
  admins_modded_server_runbook -->|deepens| admins_foundation
  admins_modded_server_runbook -->|deepens| admins_workshop_mod_wiring
  admins_modded_server_runbook -->|related| admins_ubuntu_runbook
  admins_modded_server_runbook -->|related| admins_backups_migration
  admins_modded_server_runbook -->|related| admins_performance_tuning
  admins_modded_server_runbook -->|conforms_to| meta_style_guide
  players_beginner_guide_b42 -->|deepens| players_foundation
  players_beginner_guide_b42 -->|cross_references| players_skills_xp
  players_beginner_guide_b42 -->|cross_references| players_traits_occupations
  players_beginner_guide_b42 -->|cross_references| players_medical_moodles
  players_beginner_guide_b42 -->|cross_references| players_map_locations
  players_beginner_guide_b42 -->|conforms_to| meta_style_guide
  modders_lua_api_surface -->|deepens| modders_foundation
  modders_lua_api_surface -->|related| modders_events_callbacks
  modders_lua_api_surface -->|related| modders_modoptions_pzapi
  modders_lua_api_surface -->|related| modders_item_scripts_distributions
  modders_lua_api_surface -->|related| modders_mp_networking_porting
  modders_lua_api_surface -->|related| modders_modinfo_modid_conventions
  modders_lua_api_surface -->|related| modders_first_mod_tutorial_b42
  modders_lua_api_surface -->|related| modders_porting_b41_to_b42
  modders_lua_api_surface -->|conforms_to| meta_style_guide
  modders_events_callbacks -->|deepens| modders_foundation
  modders_events_callbacks -->|related| modders_lua_api_surface
  modders_events_callbacks -->|related| modders_modoptions_pzapi
  modders_events_callbacks -->|related| modders_item_scripts_distributions
  modders_events_callbacks -->|related| modders_mp_networking_porting
  modders_events_callbacks -->|related| modders_modinfo_modid_conventions
  modders_events_callbacks -->|related| modders_first_mod_tutorial_b42
  modders_events_callbacks -->|related| modders_porting_b41_to_b42
  modders_events_callbacks -->|conforms_to| meta_style_guide
  modders_modoptions_pzapi -->|deepens| modders_foundation
  modders_modoptions_pzapi -->|related| modders_lua_api_surface
  modders_modoptions_pzapi -->|related| modders_events_callbacks
  modders_modoptions_pzapi -->|related| modders_item_scripts_distributions
  modders_modoptions_pzapi -->|related| modders_mp_networking_porting
  modders_modoptions_pzapi -->|related| modders_modinfo_modid_conventions
  modders_modoptions_pzapi -->|related| modders_first_mod_tutorial_b42
  modders_modoptions_pzapi -->|related| modders_porting_b41_to_b42
  modders_modoptions_pzapi -->|conforms_to| meta_style_guide
  modders_item_scripts_distributions -->|deepens| modders_foundation
  modders_item_scripts_distributions -->|related| modders_lua_api_surface
  modders_item_scripts_distributions -->|related| modders_events_callbacks
  modders_item_scripts_distributions -->|related| modders_modoptions_pzapi
  modders_item_scripts_distributions -->|related| modders_mp_networking_porting
  modders_item_scripts_distributions -->|related| modders_modinfo_modid_conventions
  modders_item_scripts_distributions -->|related| modders_first_mod_tutorial_b42
  modders_item_scripts_distributions -->|related| modders_porting_b41_to_b42
  modders_item_scripts_distributions -->|conforms_to| meta_style_guide
  modders_mp_networking_porting -->|deepens| modders_foundation
  modders_mp_networking_porting -->|related| modders_lua_api_surface
  modders_mp_networking_porting -->|related| modders_events_callbacks
  modders_mp_networking_porting -->|related| modders_modoptions_pzapi
  modders_mp_networking_porting -->|related| modders_item_scripts_distributions
  modders_mp_networking_porting -->|related| modders_modinfo_modid_conventions
  modders_mp_networking_porting -->|related| modders_first_mod_tutorial_b42
  modders_mp_networking_porting -->|related| modders_porting_b41_to_b42
  modders_mp_networking_porting -->|conforms_to| meta_style_guide
  modders_modinfo_modid_conventions -->|deepens| modders_foundation
  modders_modinfo_modid_conventions -->|related| modders_lua_api_surface
  modders_modinfo_modid_conventions -->|related| modders_events_callbacks
  modders_modinfo_modid_conventions -->|related| modders_modoptions_pzapi
  modders_modinfo_modid_conventions -->|related| modders_item_scripts_distributions
  modders_modinfo_modid_conventions -->|related| modders_mp_networking_porting
  modders_modinfo_modid_conventions -->|related| modders_first_mod_tutorial_b42
  modders_modinfo_modid_conventions -->|related| modders_porting_b41_to_b42
  modders_modinfo_modid_conventions -->|conforms_to| meta_style_guide
  modders_first_mod_tutorial_b42 -->|deepens| modders_foundation
  modders_first_mod_tutorial_b42 -->|related| modders_lua_api_surface
  modders_first_mod_tutorial_b42 -->|related| modders_events_callbacks
  modders_first_mod_tutorial_b42 -->|related| modders_modoptions_pzapi
  modders_first_mod_tutorial_b42 -->|related| modders_item_scripts_distributions
  modders_first_mod_tutorial_b42 -->|related| modders_mp_networking_porting
  modders_first_mod_tutorial_b42 -->|related| modders_modinfo_modid_conventions
  modders_first_mod_tutorial_b42 -->|related| modders_porting_b41_to_b42
  modders_first_mod_tutorial_b42 -->|conforms_to| meta_style_guide
  modders_porting_b41_to_b42 -->|deepens| modders_foundation
  modders_porting_b41_to_b42 -->|related| modders_lua_api_surface
  modders_porting_b41_to_b42 -->|related| modders_events_callbacks
  modders_porting_b41_to_b42 -->|related| modders_modoptions_pzapi
  modders_porting_b41_to_b42 -->|related| modders_item_scripts_distributions
  modders_porting_b41_to_b42 -->|related| modders_mp_networking_porting
  modders_porting_b41_to_b42 -->|related| modders_modinfo_modid_conventions
  modders_porting_b41_to_b42 -->|related| modders_first_mod_tutorial_b42
  modders_porting_b41_to_b42 -->|conforms_to| meta_style_guide
  modders_item_scripts_distributions -->|relates_to| players_crafting_chains
  modders_porting_b41_to_b42 -->|relates_to| players_crafting_chains
  modders_porting_b41_to_b42 -->|relates_to| admins_workshop_mod_wiring
  modders_modinfo_modid_conventions -->|relates_to| admins_workshop_mod_wiring
  modders_first_mod_tutorial_b42 -->|prerequisite_for| modders_lua_api_surface
  modders_first_mod_tutorial_b42 -->|prerequisite_for| modders_events_callbacks
  creator_format_catalogue -->|deepens| creator_foundation
  creator_format_catalogue -->|related| creator_channel_competitor_map
  creator_format_catalogue -->|related| creator_cross_promotion_funnel
  creator_format_catalogue -->|related| creator_content_calendar
  creator_format_catalogue -->|fact_checks_with| players_beginner_guide_b42
  creator_format_catalogue -->|fact_checks_with| players_b41_to_b42_transition
  creator_format_catalogue -->|fact_checks_with| players_animals_husbandry
  creator_format_catalogue -->|fact_checks_with| players_crafting_chains
  creator_format_catalogue -->|fact_checks_with| admins_modded_server_runbook
  creator_format_catalogue -->|fact_checks_with| modders_first_mod_tutorial_b42
  creator_format_catalogue -->|fact_checks_with| lore_foundation
  creator_format_catalogue -->|conforms_to| meta_style_guide
  creator_channel_competitor_map -->|deepens| creator_foundation
  creator_channel_competitor_map -->|related| creator_format_catalogue
  creator_channel_competitor_map -->|related| creator_cross_promotion_funnel
  creator_channel_competitor_map -->|related| creator_content_calendar
  creator_channel_competitor_map -->|supports| players_beginner_guide_b42
  creator_channel_competitor_map -->|supports| players_b41_to_b42_transition
  creator_channel_competitor_map -->|supports| admins_modded_server_runbook
  creator_channel_competitor_map -->|supports| modders_first_mod_tutorial_b42
  creator_channel_competitor_map -->|conforms_to| meta_style_guide
  creator_cross_promotion_funnel -->|deepens| creator_foundation
  creator_cross_promotion_funnel -->|related| creator_format_catalogue
  creator_cross_promotion_funnel -->|related| creator_channel_competitor_map
  creator_cross_promotion_funnel -->|related| creator_content_calendar
  creator_cross_promotion_funnel -->|related| admins_modded_server_runbook
  creator_cross_promotion_funnel -->|related| admins_ubuntu_runbook
  creator_cross_promotion_funnel -->|related| admins_workshop_mod_wiring
  creator_cross_promotion_funnel -->|related| modders_first_mod_tutorial_b42
  creator_cross_promotion_funnel -->|related| modders_modinfo_modid_conventions
  creator_cross_promotion_funnel -->|related| players_beginner_guide_b42
  creator_cross_promotion_funnel -->|conforms_to| meta_style_guide
  creator_content_calendar -->|deepens| creator_foundation
  creator_content_calendar -->|related| creator_format_catalogue
  creator_content_calendar -->|related| creator_channel_competitor_map
  creator_content_calendar -->|related| creator_cross_promotion_funnel
  creator_content_calendar -->|draws_facts_from| players_beginner_guide_b42
  creator_content_calendar -->|draws_facts_from| players_b41_to_b42_transition
  creator_content_calendar -->|draws_facts_from| players_farming_food
  creator_content_calendar -->|draws_facts_from| players_animals_husbandry
  creator_content_calendar -->|draws_facts_from| players_vehicles
  creator_content_calendar -->|draws_facts_from| players_medical_moodles
  creator_content_calendar -->|draws_facts_from| admins_modded_server_runbook
  creator_content_calendar -->|draws_facts_from| modders_first_mod_tutorial_b42
  creator_content_calendar -->|conforms_to| meta_style_guide
  lore_in_world_media -->|deepens| lore_foundation
  lore_in_world_media -->|related| lore_knox_event_timeline
  lore_in_world_media -->|related| players_map_locations
  lore_in_world_media -->|related| players_b41_to_b42_transition
  lore_in_world_media -->|related| modders_item_scripts_distributions
  lore_in_world_media -->|related| modders_modinfo_modid_conventions
  lore_in_world_media -->|conforms_to| meta_style_guide
  lore_knox_event_timeline -->|deepens| lore_foundation
  lore_knox_event_timeline -->|related| lore_in_world_media
  lore_knox_event_timeline -->|related| players_map_locations
  lore_knox_event_timeline -->|related| players_b41_to_b42_transition
  lore_knox_event_timeline -->|related| players_foundation
  lore_knox_event_timeline -->|related| creator_foundation
  lore_knox_event_timeline -->|conforms_to| meta_style_guide
  meta_release_versioning_policy -->|deepens| meta_style_guide
  meta_release_versioning_policy -->|related| meta_source_registry_companion
  meta_release_versioning_policy -->|related| modders_lua_api_surface
  meta_release_versioning_policy -->|related| admins_server_ini_reference
  meta_release_versioning_policy -->|related| players_foundation
  meta_source_registry_companion -->|deepens| meta_style_guide
  meta_source_registry_companion -->|related| meta_release_versioning_policy
  meta_source_registry_companion -->|related| creator_channel_competitor_map
  meta_source_registry_companion -->|supports| modders_lua_api_surface
  meta_source_registry_companion -->|supports| modders_modinfo_modid_conventions
  meta_source_registry_companion -->|supports| admins_server_ini_reference
  modders_lua_api_surface -->|related| players_crafting_chains
  modders_lua_api_surface -->|related| admins_workshop_mod_wiring
  modders_events_callbacks -->|related| players_crafting_chains
  modders_events_callbacks -->|related| admins_workshop_mod_wiring
  modders_modoptions_pzapi -->|related| admins_workshop_mod_wiring
  modders_item_scripts_distributions -->|related| admins_workshop_mod_wiring
  modders_mp_networking_porting -->|related| players_crafting_chains
  modders_mp_networking_porting -->|related| admins_workshop_mod_wiring
  modders_modinfo_modid_conventions -->|related| players_crafting_chains
  modders_first_mod_tutorial_b42 -->|related| players_crafting_chains
  modders_first_mod_tutorial_b42 -->|related| admins_workshop_mod_wiring
  creator_format_catalogue -->|related| players_foundation
  creator_format_catalogue -->|related| admins_foundation
  creator_format_catalogue -->|related| modders_foundation

Machine-readable exports

Generated artefacts live in the repository's exports/ directory: a knowledge graph (JSON + Mermaid), a document matrix (CSV/JSON), a coverage report, and a section-level RAG export (exports/rag/).

Site generated by scripts/build_site.py — do not edit by hand.