Hi, Here's a Master Server replacement I've been using that runs in PHP. I use dreamhost and can't easily run other servers, but I can easily run php stuff This still uses Unity's default NAT facilitator. You'll need to create an sql database and table called "MasterServer" with the columns like you see in RegisterHost.php or QueryMS.php. I've also put in "PHPMasterServerConnect.js" which more or less mimics the original interface. And then there's a "MainMenu.js" which uses it and shows a list of clients and lets you join them. Hopefully it's pretty straight forward how to use it, but if not and there's enough interest I'll make a tutorial. If you are using it, I'd be happy to hear about it. Good Luck.