GameDash is described as 'Empowers hosts and communities to spend less time and money on managing their infrastructure and game servers, allowing them to focus on offering their customers and players a great experience' and is a server management tool in the system & hardware category. There are more than 10 alternatives to GameDash for a variety of platforms, including Linux, Windows, Self-Hosted, Web-based and BSD apps. The best GameDash alternative is Pterodactyl, which is both free and Open Source. Other great apps like GameDash are MCSManager, GameServerApp.com, Pyrodactyl and LinuxGSM.
Been used in the industry for years and very reliable. Trusted by many