To play LAN multiplayer in offline mode using HMCL (HuajiModLoader), you can follow these general steps: Please note that the specific steps may vary depending on the version of HMCL and the game you are playing:
Make sure all players are on the same network: All players need to be connected to the same local network. This can be a home Wi-Fi network or a wired LAN.
Launch the game in offline mode: Every player should launch HMCL and launch their game in offline mode.
Host LAN games: There needs to be a player hosting the game. They can usually do this by selecting something like "Open to LAN" or something similar in the game's main menu. This will make their game session available to others on the LAN.
Configure game settings, if necessary: The host may need to configure certain settings for the LAN game, such as game mode, world options, and so on.
Make a note of the host's game port number: When a hoster opens their game to a local area network, a specific port number will be used. The host should make a note of this port number as other players will need it to connect.
Other players join the LAN game: Other players on the same network can now join the game. They may need to go to the multiplayer section of the game and select the option to join the LAN game. They may need to enter the hoster's IP address and port number.
Play the game: Once everyone has joined, you can start playing together in LAN games.
Keep in mind that the specific steps and options may vary depending on the specific game and HMCL version you are using. If you get stuck with these steps, or if they don't match what you see in HMCL, it's a good idea to consult your HMCL version or the specific instructions or user manual for the game you're playing.