The last way to join a specific Roblox game is if players have friends playing in that server. They are able to join any friend's game if they have the "Join In-game" setting enabled.

You won’t be able to join a game if Roblox servers are down at the moment or facing some technical difficulties. Hence, the first thing you should do is check the server status of Roblox and ...

Busting the various myths about how to get free Robux, as well as some details on how you can legitimately earn them.

Join Error. Not authorized to join this game (Error Code: 524). If you’re getting this bug and you have no idea how to go about it, this troubleshooting guide will help you.