If you are playing with friends or on a private server, the host must manually disable the security check: For Headless/Dedicated Servers : Open the server-settings.json file (usually in the folder) and change the line "verify_user_identity": true "verify_user_identity": false For In-Game Hosting : When creating a game, uncheck the "Verify user identity" box in the multiplayer lobby settings. Connection Method "Connect to address"
Because Factorio relies on the Steam API for some networking, "Steam emulators" (like Goldberg's) are used to trick the game into thinking it is logged into a legitimate, synchronized account. 3. The Role of Version Parity and Mods factorio cracked multiplayer verified
with a "cracked" (unverified) version in multiplayer, you must connect to a server that has user verification disabled If you are playing with friends or on