Factorio server-settings.json Builder

Fill in the form below to generate a valid server-settings.json. All major fields are covered — copy or download when ready, then drop it into your Factorio server directory.

Server Identity

name

description

tags (press Enter to add)

game tags

max_players — unlimited

0 (unlimited)64

Visibility

Public servers require a valid factorio.com account. Enter your username and password or token below.

username (factorio.com login)

token (preferred over password)

Passwords & Access

game_password (optional — leave blank for no password)

require_user_verification — only allow players with valid factorio.com accounts (true) ignore_player_limit_for_returning_players — allow previously-joined players back into a full server (false)

Autosave

autosave_interval — 10 min

5 min60 min

autosave_slots — 5

120

autosave_only_on_server — autosaves run only on the server, not on all connected clients (true) auto_pause — pause the game when no players are connected (true)

Admins

Enter Factorio usernames (not SteamID64) — one per entry.

Performance & Network

max_upload_in_kilobytes_per_second (0 = unlimited)

max_upload_slots (0 = unlimited)

minimum_latency_in_ticks — 0 ticks (1 tick ≈ 16 ms; 0 = no minimum)

0100

max_heartbeats_per_second — 60 (network tick rate; range 6–240)

6240

afk_autokick_interval — disabled (minutes before AFK players are kicked; 0 = never)

0 (never)60 min

Multiplayer Settings

allow_commands

non_blocking_saving — experimental: fork the process on Unix to create autosaves without pausing (false) only_admins_can_pause_the_game — restrict in-game pause to admins only (true)

How to use this file

Save as server-settings.json and launch Factorio with:

./factorio --start-server savefile.zip --server-settings /path/to/server-settings.json

Output — server-settings.json

{
  "name": "My Factorio Server",
  "description": "",
  "tags": [
    "game",
    "tags"
  ],
  "max_players": 0,
  "visibility": {
    "public": true,
    "lan": true
  },
  "username": "",
  "password": "",
  "token": "",
  "game_password": "",
  "require_user_verification": true,
  "max_upload_in_kilobytes_per_second": 0,
  "max_upload_slots": 5,
  "minimum_latency_in_ticks": 0,
  "max_heartbeats_per_second": 60,
  "ignore_player_limit_for_returning_players": false,
  "allow_commands": "admins-only",
  "autosave_interval": 10,
  "autosave_slots": 5,
  "afk_autokick_interval": 0,
  "auto_pause": true,
  "only_admins_can_pause_the_game": true,
  "autosave_only_on_server": true,
  "non_blocking_saving": false,
  "admins": []
}

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