Nexen vs ROCKNIX

Nexen is a free, open source multi-system emulator for Windows, Linux, and macOS. It lists eight fully supported systems: NES, SNES, Game Boy and Color, Game Boy Advance, Master System and Game Gear, PC Engine, WonderSwan, and Atari Lynx. CPU and PPU emulation is cycle-accurate, with full coprocessor support listed for several SNES chips. Each game can have unlimited timestamped saves, a visual picker, and 36 rolling checkpoints at five-minute intervals. Movie tools support frame-by-frame recording and playback, rerecording, and imports and exports for BK2, FM2, SMV, LSMV, VBM, and GMV files. A TAS editor provides a piano-roll timeline, undo and redo, greenzone seeking, alternate branches, and Lua scripting. Debugging tools include a disassembler, memory viewer, breakpoints, trace and code/data logging, and a profiler. Nexen also lists rollback netplay and exports symbols, code coverage data, cross-references, and source maps to Pansy for the Flower Toolchain. Sega Genesis, Atari 2600, and Fairchild Channel F support remain in progress.

ROCKNIX is a free, immutable Linux distribution for handheld gaming devices, focused on retro gaming emulation. Installation means downloading a device image, flashing it to an SD card or internal storage, then booting the device. It supports local and remote multiplayer, save states, video filters, in-game touch controls on supported devices, and custom performance and power profiles. Bluetooth audio and controller connections, HDMI and USB audio/video output, and music and video playback are also included. Cloud and LAN synchronization are available through Syncthing and rclone; built-in VPN support covers WireGuard, Tailscale and ZeroTier. ROCKNIX integrates RetroAchievements and automatic game scraping. Achievement support varies by emulator and game and requires an internet connection. Steam and Heroic Games Launcher are supported on arm64. Updates can be installed over the air from EmulationStation or manually with an update tar file. There is no formal support; the project is provided as-is through community help channels. Supported devices are listed in the wiki, and adding a device requires contributed work and direct access to it.