KNULLI vs LaunchBox

KNULLI is free, open-source custom firmware for supported retro-gaming devices, including handhelds and bartops. It runs on Linux and self-hosted setups, with supported platforms including Anbernic RG series, GoRetroid Pocket 5 and Mini, Miyoo Flip, Powkiddy RGB30 and X55, Orange Pi Zero 2w, and TrimUI Brick and Smart Pro. The system provides EmulationStation or Simplemenu/Simplermenu+ frontends, RetroArch, and multiple libretro cores. It adds RetroAchievements, netplay, cover art, and thumbnail scraping through ScreenScraper, TheGamesDB, and ArcadeDB. Wireless and Bluetooth features depend on the device, while external USB wireless adapters are supported. Syncthing synchronizes saves between KNULLI devices or backs them up to a NAS, not a cloud. Installation requires a device-specific image flashed to an SD card or internal storage. Games, BIOS files, saves, and themes must use a strict case-sensitive folder structure.

LaunchBox is a game collection frontend and manager for modern PC games and emulated console games. It can import Steam and GOG games, ROM files, and MS-DOS games, then retrieve box art and metadata from its Games Database along with fan art, screenshots, and logos. Collections can be arranged and filtered by genre, platform, ESRB rating, developer, and publisher, with custom status and source fields. The Windows app supports Windows 10 and higher, with Windows 10 and 11 described as fully supported. LaunchBox for Android is free for collections of 100 games or fewer; it shares the games database, media, and portable XML data with Windows, and Windows data can be exported to Android. Premium adds themes, Big Box mode, gamepad automation, startup and pause screens, and display customization. The Regular Windows license costs $30 as a one-time purchase and includes a year of free updates. The maker says Premium is DRM-free and can be deployed to as many personal devices as desired. Windows data can also be moved by copying the app to another folder or computer.