Im having troubleshooting a certain game however it is not my own yet the maker left the materials needed to put the game up. I cant seem to find a way to publish it and make it public

Made by Dragnon20

Please help been years since I played such a game.
When the game/.dmb has booted up with the window open right click the Title bar and you can select an option from the popup called "Server". Select the "Host..." option and you will be on your way!