Fix SCP: Secret Laboratory Server Not Showing
server not showingnot verifiedcan't find serverAn SCP: Secret Laboratory server that won't list usually fails the central-server verification or has a blocked port. Here's how to fix it.
Open the port
SCP:SL uses a single UDP port (default 7777). Open/forward it:
7777/udp game (default)It must verify with the central server
SCP:SL servers register with the official central server to appear in the browser. If verification fails, the server runs but won't list. Check the server console on startup — it logs whether verification succeeded, and why if it didn't (commonly the port not being reachable from outside).
The central server tests your port from the outside. If a firewall/NAT blocks it, verification fails and the server stays hidden — even though it's "running".
Connect directly
You can join by ID or directly. In-game, use the direct connect option with server-ip:7777 to get in while you sort out listing.
Open 7777/udp so it's reachable from outside, watch the console for verification, and direct-connect by IP meanwhile.
SCP: Secret Laboratory is developed by Northwood Studios and based on the SCP Foundation (CC BY-SA). ESAGAMES is an independent hosting provider, not affiliated with or endorsed by Northwood Studios.
SCP:SL hosting that lists
Our SCP: Secret Laboratory hosting opens the port and verifies cleanly on a protected Frankfurt network.
Frequently asked questions
What port does an SCP: Secret Laboratory server use?
UDP 7777 by default. It must be open and reachable from the internet, because the central server verifies it externally before listing your server.
Why does my SCP:SL server run but not show?
It failed central-server verification — usually the port isn't reachable from outside due to a firewall or NAT. Check the startup console log for the verification result.
Can I join an SCP:SL server directly?
Yes — use the direct-connect option with the server IP and port 7777, which works even while you troubleshoot why it isn't listing.
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