SteamOS is a Linux-based operating system developed by Valve Corporation primarily for gaming. It is designed to run on personal computers and is optimized for playing games from the Steam platform, allowing users to enjoy a console-like experience on their PCs. The operating system supports a wide range of hardware and is compatible with many popular games. SteamOS also features a user-friendly interface that can be navigated with a game controller, making it accessible for gamers who prefer not to use a keyboard and mouse.