SCP: Secret Laboratory is a free multiplayer horror game. Each round, players spawn as facility staff (guards, scientists), D-Class prisoners, or the SCPs, and fight to escape or contain a breach. Your server runs full rounds for up to 40 players. It is a real dedicated server, so a session runs without anyone hosting from their PC.
How your friends join
- Open Play, then Direct Connect, and enter the address on your server card (it ends in :7777).
- Servers start unlisted: nobody can find them in the Server List, so only people you give the address to can join.
- Pick Listed on deploy, or click Show on server list in the web console, and it shows in the Server List as 2hours.gg SCP:SL Server followed by your city.
- SCP:SL has no join password. Unlisted is how you keep a server to your group.
Server List says "invalid signature"?
This is a game bug on the first launch after installing SCP:SL, not a problem with your server. Quit the game and start it again: the list loads on the second launch. Direct Connect works either way.
Starting a round
The server waits in the lobby until 2 players are in, then starts the round by itself. Playing alone, or want to start now? Press M for Remote Admin and type forcestart, or click Start round in the web console.

Remote Admin (press M)
The Steam account that deployed the server is its owner. Join it and press M: the Remote Admin panel opens with full rights, no password. From there you can force-start rounds, kick or ban players, and use every admin tool in the game. Only your account gets admin.
Web console
Your server card has a console that works from the browser, even when you are not in the game. It has buttons for Start round, Restart round, Players, Friendly fire, Broadcast, and Hide from or Show on the server list. You can also type any command from the table below.
Commands
Type these in Remote Admin (M) or in the web console. In the web console, Remote Admin commands start with a slash.
forcestart: Starts the round now, even with 1 player.roundrestart: Ends the round and goes back to the lobby.players: Lists everyone with their player id./kick <player id> <reason>: Kicks a player./bc 5 <message>: Shows a message on every screen for 5 seconds./setconfig friendly_fire true: Friendly fire on (false turns it off). Lasts until the server restarts.!private / !public: Web console only: hides the server from the Server List, or shows it again.
What you get
- The full round flow: containment breach, escape, and the SCPs (173, 049, 096, 106 and more).
- Pick Small (10), Medium (20) or Large (40) players on deploy.
- The game as Northwood ships it, with no plugins.
