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Guides / Satisfactory / Server settings

Satisfactory Config Editor: Engine.ini settings

The Satisfactory Config Editor edits Engine.ini in groups: Saves, Players and Upload to players. Save only while stopped. Other options are on Server.

Updated , checked on Satisfactory 1.2, build 513885

The Config Editor for Satisfactory edits one file, Server settings, which is the game’s Engine.ini. You can only save while the server is stopped, because the game rewrites its settings files when it stops. The game’s other options, such as autosave timing and seasonal events, are on the Server page.

Where it is

Open the Config Editor page of your server. The file Server settings is the first button in the row of files. If you have mods that keep settings, each one has a button after it, named after the mod’s file. See mod settings.

The Config Editor with the Saves, Players and Upload to players groups and the Advanced card
  1. Stop the server first
  2. Autosaves kept
  3. Server tick rate
  4. Upload per player
  5. More settings

Save only while stopped

The page tells you: “The game writes this file itself when it stops, over anything changed while it runs. Stop the server to change these settings.” While the server runs you can read the values, but Save stays off.

  1. Choose Stop at the top right of the server page.
  2. Change the values.
  3. Choose Save. The page says “Saved. The changes apply when the server starts.”
  4. Choose Start at the top right of the server page.

Choose Discard to throw away changes you have not saved. The search box finds a setting by name.

If the page says the file does not exist yet, choose Start once. The game creates it at its first start.

The groups

Each setting below shows its key in Engine.ini, with the section it sits in.

Saves

  • Autosaves kept: how many autosaves the game keeps before it writes over the oldest. The game’s own is 3. Key mNumRotatingAutosaves in [/Script/FactoryGame.FGSaveSession]. How often it saves is on the Server page. See autosave settings.

Players

All three are in [/Script/OnlineSubsystemUtils.IpNetDriver].

  • Server tick rate: how many times a second the server updates players. 30 is the game’s own. Higher uses more processor time and upload. Key NetServerMaxTickRate.
  • Time to join (seconds): how long a player may take to load in before the server gives up. A big factory needs longer. The game’s own is 60. Key InitialConnectTimeout.
  • Drop a silent player after (seconds): a player whose game stops answering for this long is dropped. Raise it if players on slow links drop out. The game’s own is 60. Key ConnectionTimeout.

Upload to players

These set how much the server sends each player, in bytes a second. 120000 is about 1 Mbit/s.

  • Upload per player: raise it if things jump around for players in a busy factory. Key ConfiguredInternetSpeed in [/Script/Engine.Player].
  • Most upload per player: the ceiling on what one player is sent. Keep it at or above the upload per player. Key MaxInternetClientRate in [/Script/OnlineSubsystemUtils.IpNetDriver].
  • Most upload per player, Steam: the same ceiling for players who join through Steam. Raise it together with the one above. Key MaxInternetClientRate in [/Script/SteamSockets.SteamSocketsNetDriver].
  • Most upload per player, Epic: the same ceiling for players who join through the Epic Games Store. Key MaxInternetClientRate in [/Script/SocketSubsystemEOS.NetDriverEOS].
  • Upload for everyone together: bytes a second for all players together. Key TotalNetBandwidth in [/Script/Engine.GameNetworkManager].
  • Send only what is near: players get updates only for what is near them. Leave it on. Key bUseDistanceBasedRelevancy in [/Script/Engine.GameNetworkManager].

Advanced

Settings the panel has no name for wait behind the Advanced card. It says how many more settings are in the file. Choose Show them to see them. Most servers never change them.

The Advanced card opened, with the other Engine.ini settings as rows
  1. Advanced

By hand

At the foot of the page, Edit the whole file as text opens the file in the file editor. The file is FactoryGame/Saved/Config/LinuxServer/Engine.ini. Choose Stop first. Unreal leaves out any line equal to the default, so a setting at its default may not be in the file at all. An example with valid ini:

[/Script/OnlineSubsystemUtils.IpNetDriver]
NetServerMaxTickRate=30
InitialConnectTimeout=60

[/Script/FactoryGame.FGSaveSession]
mNumRotatingAutosaves=3

What is not here

  • Max players: the Players setting on the Startup page. The game reads it at the next start. The panel offers no Game.ini. Not checked on 1.2 as of 27 October 2026: whether a MaxPlayers line you add to Game.ini by hand has any effect.
  • Seasonal events, autosave interval, pause when empty, daily restart, network quality, weather: the Options card on the Server page. See server options.
  • Name and passwords: the Server page.

If it does not work

  • Save is greyed out. The server is running, starting or stopping. Choose Stop and wait until it is offline.
  • Your change is gone after a restart. You edited the file while the server ran. The game wrote over it as it stopped. Change it again while stopped.
  • Players still drop. Raise Drop a silent player after (seconds), and check the player’s own connection.

More about the game: Satisfactory servers.

Not checked on 1.2 as of 27 October 2026: the best upload values for large groups of players.

Sources: satisfactory.wiki.gg: Dedicated servers

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