Check if your Abiotic Factor server is online
Abiotic Factor answers the standard Steam query on its query port, which is the port this check needs — not the game port players use.
The ports Abiotic Factor uses
The checker is filled in with 27015, the default query port. If you started the server with a different -QueryPort=, enter that. Entering the game port (7777) will not get an answer.
Every port a default Abiotic Factor install uses
With the game port left at 7777. If you changed it with -PORT= launch argument, the other ports move with it.
| Port | What it is for |
|---|---|
| 7777 UDP | Game trafficRequired Players connect here over UDP. |
| 27015 UDP | Steam queryRequired Set with -QueryPort=. This is how the server is advertised on Steam. |
Still offline? Try this
If the query port is open and there is still no reply, check that the server finished loading its world, and that it was started with the query port you expect — launch arguments are the only place it is set.
What a Abiotic Factor server needs to run well
- Memory, 6 players
- 6 GB
- CPU cores
- 4+
- Disk
- 10 GB+
Unreal Engine. The facility streams in sectors as players move, so a spread-out team costs more CPU than one sticking together.