Nearcade vs Retrom

Nearcade is a free, open-source, self-hosted platform for playing local co-op games over the internet with friends. A host runs the game, while viewers join from a desktop or mobile web browser without installing a client. Streaming uses WebCodecs or WebRTC and peer-to-peer connections. Hosts can allow gamepad input, raw keyboard and mouse, or keyboard and mouse mapped to a virtual gamepad; mobile viewers get touch controls and a virtual joystick. Sessions can use private Cloudflare or Zrok tunnels, or appear in the public Nearcade Arcade lobby. Public Arcade sessions are limited to 80 minutes and require a verified tunneling provider. A host needs Node.js 18 or newer and Python 3. Linux also requires PipeWire and the uinput module, while Windows gamepad support requires ViGEmBus. Linux is listed as production-stable; Windows and macOS are experimental, and macOS lacks gamepad support. The project is published under GPL-3.0 and provides setup, usage, API, and VPS server documentation.

Retrom is a self-hosted game library service centered on emulation. It scans a server filesystem for games and platforms, then adds them to a library that desktop clients can use to install, uninstall, and play games. Clients are available for Windows, macOS, and Linux, with a browser client for library access from other devices. Retrom can run with a dedicated server or in standalone mode, where a client runs the server locally; other clients can connect to that standalone server only while the client remains open. It supports cloud saves for built-in and standalone emulators, syncing save data and save states to the server. Emulator profiles can be kept on the server for sharing or restoration, though clients need matching emulator and other client-specific paths to share configurations. Retrom can retrieve metadata and artwork through IGDB, its only listed metadata provider. Steam is its only supported third-party library integration and needs a Steam API key and user ID. Retrom is free under GPL-3.0. The project says it lacks specific security measures and recommends local-network use or a properly secured reverse proxy.