Playing Serious Sam 3: BFE over LAN without Steam can be tricky because the game’s network menu is often tied to Steamworks authentication. Even for local play, the standard Steam version may require being online just to access the multiplayer menus.
To bypass these restrictions and play on a local network, you generally have three main options: using Virtual LAN (VPN) tools for a "simulated" LAN, manual console commands for direct IP connection, or local split-screen if you're in the same room. Option 1: Virtual LAN Tools (Recommended)
Third-party tools can trick the game into seeing other computers as if they are on a local network, often bypassing the need for an active Steam connection to find lobbies.
Radmin VPN: Highly recommended for modern systems. It creates a virtual private network where players can see hosted LAN lobbies even if the game's standard server browser isn't working. how to play serious sam 3 multiplayer lan without steam
Tailscale: A more secure, modern alternative that allows you to share access to your computer "node" with specific friends so they can connect directly to your local IP. Option 2: Direct IP Connection (Advanced)
If you can reach the main menu but can't find your friend's server in the browser, you can force a connection using the game's developer console.
Find the Host’s Local IP: On the host computer, open the Command Prompt and type ipconfig. Look for the "IPv4 Address" (usually something like 192.168.1.XX). Playing Serious Sam 3: BFE over LAN without
Open the Console: In the game, press F1 or ~ to open the console. Host a Server: Start a "Network Play" session as a server.
Join via Command: On the client computer, open the console and type:gam_strConnectToIP = "192.168.1.XX:27016"followed by:gamStart()(Note: The default port for SS3 is typically 27016 or 27015). Option 3: Local Split-Screen (No Network Required)
If the goal is simply to play with someone in the same room, Serious Sam 3 natively supports up to 4-player split-screen on a single PC. Step 5: Joining the Server
If you are using a switch connected to a router, ensure all PCs are on the same subnet (e.g., all 192.168.0.x). If some are 10.x.x.x, they won't see each other. Use static IPs.
This guide is for owners of Serious Sam 3 who wish to exercise their right to LAN play without an internet connection. Croteam officially supports LAN. However, deliberately bypassing Steam on a pirated copy is illegal. If you enjoy the game, buy it – it’s often $5 on sale. The GOG version is DRM-free and the easiest for LAN (no cracks needed).
| Problem | Solution |
|--------|----------|
| Games don't see each other | Disable Windows Firewall or allow Sam3.exe through it on private networks. |
| Still no LAN list | Use Direct IP join. Ensure all PCs are on same subnet (e.g., 192.168.1.x). |
| "Steam must be running" error | You didn't replace the .exe correctly – use a proper Steamless crack. |
| Crash on launch | Remove any existing Steam client running in background. Also try -no_steam instead of +net_no_steam 1. |
| Different game versions | Compare Version.txt in the game root folder – update all PCs to same build. |
192.168.1.50).