Build your Batocera library from games you already own on original hardware. Alternatively, purchase digital re-releases on Steam or GOG and extract the ROMs (legal in some cases). For the truly cautious, Batocera supports Libretro cores for homebrew games—there are thousands of free, incredible indie homebrew ROMs available legally.

While you generally provide your own game files (ROMs), Batocera includes several built-in methods to download content directly within the OS: Official Content Downloader:

Before diving into game downloads, ensure you have Batocera installed on your device. You can download the latest Batocera image from the official website and follow the installation instructions for your specific device.