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Abiotic Factor Server Configuration Guide 2026 - Sandbox Settings & Launch Params

Abiotic Factor Guide • Updated Jan 22, 2026

Abiotic Factor Server Configuration Guide (2026)

This guide focuses on the real, supported configuration options for Abiotic Factor dedicated servers: SandboxSettings.ini for gameplay rules and launch parameters for server identity, ports, and slots.

Configuration Overview

  • Main file: SandboxSettings.ini
  • Dedicated server path: AbioticFactor/Saved/SaveGames/Server/Worlds/<WorldName>/SandboxSettings.ini
  • Windows-only server: Dedicated server is officially Windows-only
  • Restart required: Most changes apply after a restart

Where the SandboxSettings.ini Lives

For a dedicated server, the sandbox file lives inside the world save folder:

AbioticFactor/
  Saved/
    SaveGames/
      Server/
        Worlds/
          <WorldName>/
            SandboxSettings.ini

If the file does not exist, create it manually. The file must start with the [SandboxSettings] header to load correctly.

Core Sandbox Settings (Most Used)

SettingWhat it controlsDefault
GameDifficultyOverall difficulty scaling (Normal/Hard/Apocalyptic)1 (Normal)
LootRespawnEnabledWhether loot/resources respawn in the facilityFalse
DayNightCycleStateNormal / Always Day / Always Night0 (Normal)
DayNightCycleSpeedMultiplierSpeed of the day/night cycle1.0
FoodSpoilSpeedMultiplierHow fast food spoils1.0
RefrigerationEffectivenessMultiplierHow effective refrigeration is1.0
EnemySpawnRateEnemy respawn frequency1.0
EnemyHealthMultiplierEnemy health scaling1.0
EnemyPlayerDamageMultiplierEnemy damage vs players1.0
DamageToAlliesMultiplierFriendly fire scaling (0.5 is default)0.5
PlayerXPGainMultiplierXP gain rate1.0

Minimal SandboxSettings.ini Example

[SandboxSettings]
GameDifficulty=1
LootRespawnEnabled=False
DayNightCycleState=0
DayNightCycleSpeedMultiplier=1.0
FoodSpoilSpeedMultiplier=1.0
RefrigerationEffectivenessMultiplier=1.0
EnemySpawnRate=1.0
EnemyHealthMultiplier=1.0
EnemyPlayerDamageMultiplier=1.0
DamageToAlliesMultiplier=0.5
PlayerXPGainMultiplier=1.0

Dedicated Server Launch Parameters

The official dedicated server wiki provides a standard Windows launch line. Adjust the values for your server:

AbioticFactorServer-Win64-Shipping.exe -log -newconsole -useperfthreads -NoAsyncLoadingThread -MaxServerPlayers=6 -PORT=7777 -QueryPort=27015 -ServerPassword=YourServerPassword -AdminPassword=YourAdminPassword -SteamServerName="Your Server Name"
  • Game port: -PORT (default example: 7777)
  • Query port: -QueryPort (default example: 27015)
  • Slots: -MaxServerPlayers
  • Server name: -SteamServerName
  • Admin access: -AdminPassword or add SteamIDs in Admin.ini

Admin List: If you omit -AdminPassword, add your SteamID to AbioticFactor/Saved/SaveGames/Server/Admin.ini under [Moderators].

Performance & Stability Guidance

  • Avoid random Unreal Engine .ini tweaks: Many CVar tweaks from other UE games do not apply to Abiotic Factor servers.
  • Use sandbox multipliers first: Lower EnemySpawnRate or adjust difficulty before changing anything else.
  • Change one setting at a time: Restart and verify in logs before stacking more changes.
  • Back up your world: Keep a copy of the world folder before major edits.

Troubleshooting

Settings are not applying

Confirm the file path and that the file starts with [SandboxSettings]. Restart the server after edits.

Server not visible in browser

Confirm ports are open/forwarded and match your launch parameters. Use direct connect with IP:PORT if needed.

Admins not working

If you do not use -AdminPassword, add your SteamID in Admin.ini and restart.

Next Steps

Managed Abiotic Factor Hosting: Supercraft provides optimized Abiotic Factor servers with automated backups, sandbox tuning help, and 24/7 support.

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