Linux Game Server Managers - The command line tool for quick, simple deployment and management of dedicated game servers.
Pterodactyl - Pterodactyl is the free game server management panel designed by users, for users.
Pufferpanel - It's made for hosting your Minecraft server. It's open source.
WindowsGSM - A Game Server Manager works on Windows Platform.
Jexactyl - Jexactyl is a fast, advanced and customisable game management panel and billing system in one.
Open Game Panel - OGP is a game server control panel.