Abiotic Factor Server Launch Parameters

Complete reference for all Abiotic Factor dedicated server startup parameters — ports, players, passwords, crossplay, and more.

Launch parameters control core server behavior and are set in the Startup tab of the XGamingServer Panel. They cannot be changed in config files.

All Launch Parameters

Essential

Parameter	Default	Description
`-SteamServerName="Name"`	`"A Pterodactyl Hosted Server"`	Server browser display name
`-MaxServerPlayers=6`	`6`	Max players (1–24). Above 6 shows a warning to joining players.
`-PORT=7777`	`7777`	Game port (UDP)
`-QueryPort=27015`	`27015`	Steam server browser port (UDP)
`-ServerPassword=pass`	(empty)	Join password. Blank = public.
`-WorldSaveName=Cascade`	`Cascade`	World save folder name

Admin

Parameter	Description
`-AdminPassword=pass`	Enables in-game admin authentication via password. If omitted, password-based admin is disabled. Recommended for console players since Admin.ini only supports Steam IDs.
`-AdminIniPath=path`	Override path for Admin.ini (relative to `\Saved\` folder)
`-SandboxIniPath=path`	Override path for SandboxSettings.ini (relative to `\Saved\` folder)

Crossplay & Platform

Parameter	Description
(no flag)	Default — full crossplay (Steam, Xbox, PS5)
`-PlatformLimited=PC`	Steam users only
`-PlatformLimited=Playstation`	PlayStation users only
`-PlatformLimited=Xbox`	Xbox and Windows Store users only

Performance

Parameter	Description
`-log`	Enable logging output
`-newconsole`	Open a visible console window
`-useperfthreads`	Use CPU performance threading (recommended)
`-NoAsyncLoadingThread`	Disable async loading. Not currently recommended per dev feedback.

Networking

Parameter	Description
`-LANOnly`	LAN-only mode (requires port 14001 unblocked locally)
`-MultiHome=IP`	Bind to a specific IP address (for multi-adapter servers)
`-UseLocalIPs`	Allow binding to local IPs. May break internet access — remove if server browser stops working.

⚠️ Warning: Do NOT use -NOSTEAM — it will break server functionality.

Example Startup Command

AbioticFactorServer-Win64-Shipping.exe -log -useperfthreads -MaxServerPlayers=6 -PORT=7777 -QueryPort=27015 -ServerPassword="secret" -AdminPassword="adminpass" -SteamServerName="My Server" -WorldSaveName=Cascade

Panel Startup Fields

On XGamingServer, common parameters are exposed as fields in the Startup tab:

Panel Field	Maps to Parameter
Server Name	`-SteamServerName`
Server Password	`-ServerPassword`
Max Players	`-MaxServerPlayers`
Query Port	`-QueryPort`

For parameters not exposed in the panel (like -AdminPassword, -PlatformLimited, -WorldSaveName), check if there's an Additional Arguments or Startup Command field, or contact support.

Abiotic Factor Server Launch Parameters

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