Check if your Sons of the Forest server is online
Sons of the Forest runs on Steam networking, so the ports in play are Steam's rather than one obvious game port.
The ports Sons of the Forest uses
You need the game port and a Steam query port, both UDP, sitting in separate ranges. This tool reads the query port. The dedicated server docs list both, and the usual slip is forwarding just the first.
Every port a default Sons of the Forest install uses
With the game port left at 8766. If you changed it with GamePort in dedicatedserver.cfg, the other ports move with it.
| Port | What it is for |
|---|---|
| 8766 UDP | Game trafficRequired GamePort. |
| 27016 UDP | Steam queryRequired QueryPort. A fixed default, independent of the game port. |
| 9700 UDP | Blob syncRequired BlobSyncPort. Carries world-state transfer; without it clients stall at the loading screen. |
Still offline? Try this
Open ports and a failing query usually mean the server is not in dedicated mode or has no valid save selected. A process that could not load its save may sit there running forever and never respond.
What a Sons of the Forest server needs to run well
- Memory, 8 players
- 12 GB
- CPU cores
- 4+
- Disk
- 15 GB+
Cannibal AI runs across the whole map rather than only near players.