Since cracked versions cannot use Steam’s "Invite to Lobby" feature, you must use one of these two workarounds: Method A: Virtual LAN (Recommended)

Once you've configured your firewall and port forwarding settings, you can join a multiplayer server:

Most cracked releases use a Steam emulator that creates a steam_api64.dll (or similar) and a configuration file (e.g., steam_settings folder, SmartSteamEmu.ini , or Goldberg settings). Check your game folder – if you see SmartSteamEmu.ini or a steam_settings directory, follow the appropriate method below.