Satisfactory server requirements

1. Download

   Free anonymous download, Steam app 1690800, about 2.8 GB.

   docker run --rm -v /srv/games/satisfactory:/data steamcmd/steamcmd:latest \
     +@sSteamCmdForcePlatformType linux +force_install_dir /data \
     +login anonymous +app_info_update 1 +app_update 1690800 validate +quit

2. Run

   Ubuntu 24.04 with ca-certificates and libcurl, tagged game_runtime (as on the Palworld page). Saves in ~/.config/Epic, on a volume the user can write.

   printf 'FROM ubuntu:24.04\nRUN apt-get update && apt-get install -y --no-install-recommends ca-certificates libcurl4t64 && rm -rf /var/lib/apt/lists/*\nUSER ubuntu\n' | docker build -t game_runtime -
   chown -R 1000:1000 /srv/games/satisfactory
   docker volume create satisfactory_save
   docker run --rm -v satisfactory_save:/x ubuntu:24.04 chown 1000:1000 /x
   docker run -d --name satisfactory --memory 12g \
     -v /srv/games/satisfactory:/satisfactory -w /satisfactory \
     -v satisfactory_save:/home/ubuntu/.config/Epic \
     game_runtime ./FactoryServer.sh -log -unattended

3. Claim

   Admin API up 2.3 seconds after start. Unclaimed server: passwordless login, then claim with a name and admin password for an admin token.

   API=https://SERVER_IP:7777/api/v1
   TOKEN=$(curl -sk -H 'Content-Type: application/json' \
     -d '{"function":"PasswordlessLogin","data":{"MinimumPrivilegeLevel":"InitialAdmin"}}' $API \
     | jq -r .data.authenticationToken)
   ADMIN=$(curl -sk -H 'Content-Type: application/json' -H "Authorization: Bearer $TOKEN" \
     -d '{"function":"ClaimServer","data":{"ServerName":"My server","AdminPassword":"change-me"}}' $API \
     | jq -r .data.authenticationToken)

4. New game

   Works on build 24656085. MapName, bSkipOnboarding and GameModeSettings required, though unmarked in the published API notes. World running 15 seconds later.

   curl -sk -H 'Content-Type: application/json' -H "Authorization: Bearer $ADMIN" -d '{
     "function": "CreateNewGame",
     "data": {"NewGameData": {
       "SessionName": "My game",
       "MapName": "/Game/FactoryGame/Map/GameLevel01/Persistent_Level",
       "StartingLocation": "Grass Fields",
       "bSkipOnboarding": true,
       "AdvancedGameSettings": {},
       "GameModeSettings": {},
       "CustomOptionsOnlyForModding": {}
     }}}' $API

Launch options on the start command; server options in the Server Manager or the API.

CreateNewGame: 'Missing JSON value named MapName' (or bSkipOnboarding, or GameModeSettings)

Build 24656085 requires all three; the field is bSkipOnboarding, not SkipOnboarding. One missing field named per attempt; working body in Docker setup step 4.

Nobody can join a new server

No game yet. Claim it, then create or upload a game via the Server Manager or the admin API.

World saves and reloads once a day

Scheduled session restart: FG.ServerRestartTimeSlot, default midnight server time. Bench log at 00:00 UTC: 'Session Restart Timer elapsed, rebooting the session to maintain clock stability/game performance'; memory peaked at 3.4 GB, above the first load. Set the slot to an hour nobody plays.

Near 0% CPU, world not moving

Expected with nobody connected: FG.DSAutoPause, on by default, pauses the world (isGamePaused=true). Resumes when someone joins.

No connections after patch 1.1

Patch 1.1 added TCP 8888 for reliable messaging. Forward it with UDP and TCP 7777.

Remapped port 7777 fails

Port redirection unsupported for the standard port (official wiki); external and internal numbers must match. Change -Port instead.

Changes from defaults

• Claimed and new game created via the HTTPS API, not the client's Server Manager. Same claimed server and session.
• New game: Grass Fields start, onboarding skipped, other game and server settings default.
• Default ports.

Full method