To keep a server online 24/7 for friends or a community, you will need to rent a Virtual Private Server (VPS) or a dedicated server.
You can look into the server-side database (usually MySQL) and server binaries to understand how mobile MMO architecture works. clash of kings private server files better
: Discussion and updates are often shared via the Clash of Kings Legacy YouTube channel . Key Components Required for Setup To keep a server online 24/7 for friends