GameEx vs RePlayOS

GameEx is an arcade and emulator front end for MAME, GameBase, Daphne, PC games and command-line emulators, with HTPC features. The site lists original GameEx, GameEx Arcade Edition and GameEx Evolution. Its feature list describes support for nearly any emulator, with advanced MAME support, and compatibility with arcade controls such as X-Arcade, Slik-Stik, JPAC and IPAC, as well as remotes and gamepads. Media features include video and DVD playback, picture viewing, internet radio, a jukebox, a news reader and a YouTube module. Named integrations include Steam, EA Origin, Uplay, iTunes, Windows Media Player, GameBase, GameEx Arcade and the TMDb API. GameEx Online and GameExtender add networked display, remote control and online game statistics. Its listed free plan costs nothing, but commercial use requires each copy to be registered or purchased. The listing includes Android, Linux, macOS and Windows; the maker describes Linux or Mac use through WINE as experimental, while the multiplatform alpha builds may lack features.

RePlayOS is a Linux distribution for emulating classic game consoles, arcade machines, and computers through a streamlined libretro frontend. It is built around Raspberry Pi hardware, with listed support for Zero 2, 3A/B/B+, 4B, and 5B models, and works with LCD and CRT screens. Its DynaRes display engine supports native CRT timings, timing changes, CRT profiles, dual-screen modes, and LCD operation at game refresh rates. The system supports more than 700 controllers and up to six players, plus RetroAchievements in compatible cores and games. Replay Control is a companion web app for browsing games, launching them on a TV, managing favorites, and configuring the system over a local network. Compatible cores can use Link Play multiplayer over that network. Alpha Player handles audio and video files, with Raspberry Pi 5 recommended for movies. A small HTTP JSON API provides local or LAN control when enabled, but uses plain HTTP. The public version is free; the frontend is proprietary, with restrictions on modification, standalone redistribution, and unauthorized commercial use.