NeoBox vs NeoGeo CD Redux

NeoBox is a native macOS app with a built-in Geolith Neo Geo emulator; users provide their own ROMs and BIOS files. It accepts MAME-format ZIPs, scans ROM folders, organizes recognized games with bundled metadata, and watches folders for additions. The maker says metadata covers 158 games, including MVS and AES titles through KOF 2003. NeoBox provides timestamped save states, numbered slots, per-game memory cards, and F12 screenshots. Display options include an optional Metal-rendered CRT shader, Auto 4:3, and pixel-perfect integer scaling. Xbox, PlayStation, Switch Pro, and MFi controllers work over USB or Bluetooth, with keyboard input also available. Users can select external MAME instead of Geolith; the maker says the library, save states, and bindings carry over. NeoBox requires macOS 14 or later and is native for Apple Silicon. The Mac App Store listing describes it as signed and notarized. The NeoBox: Neo Geo Player plan costs $14.99 as a one-time purchase.

NeoGeo CD Redux is an open-source NeoGeo CD emulator with build targets for Nintendo GameCube and Wii. The Wii target runs natively rather than requiring GameCube mode. It loads game media from SD cards and DVDs, with USB loading on Wii, plus FAT-formatted SD access through WKF and FAT-formatted hard-drive access through IDE-EXI. Wii controller options listed are Wii Remote, Nunchuck, Classic Controller, and GameCube controllers when the stated detection condition is met. Video output includes progressive modes and 480i, 480p, 576i, and 576p, with component-cable detection. MP3 playback from SD and DVD is documented. Save files can use SD storage or a memory card, while WKF and IDE-EXI write support was not included in the listed release. The project lists .bin/.cue, .img, and .iso images. It is free, and the latest changelog entry is unofficial version 0.1.52A.2 from July 18, 2013.