openMSX vs Provenance

openMSX is a free, open-source emulator for the MSX home computer system, with an aim of 100% accuracy. It emulates almost all MSX, MSX2, MSX2+, and turboR systems, plus some others experimentally. The project lists over 230 machine configurations and over 110 extension hardware configurations. A built-in graphical interface works across supported operating systems. Users can control the emulator with Tcl scripts or a command interface over pipes or a UNIX domain socket, and external applications can connect through that interface. The built-in debugger provides watchpoints, breakpoints, viewers, and real-time data display; save states and a reverse feature support replay or stepping back through time. MIDI connectivity is available through host frameworks on Windows, Mac, and Linux. Downloads include Windows, macOS, Linux, and Android builds, though listed versions differ by platform. Version 20.0 and later requires OpenGL 2 support. Android support is listed only through version 0.15.0, and the default C-BIOS machine does not provide all functionality for a complete MSX machine. Catapult is deprecated; the project recommends its built-in GUI.

Provenance is a free, open-source retro game emulator frontend for Apple platforms, available for iOS and macOS. It supports more than 38 console systems, including systems from Atari, Nintendo, Sega, and Sony. Its library can display automatically downloaded box art, screenshots, release details, ratings, and scanned manuals. Listed emulation features include save states, cheats, fast forward, shaders, visual filters, controller support, RetroAchievements, and multiplayer. Apple integration includes native tvOS, Apple TV TopShelf, Siri Remote, Spotlight search, Siri shortcuts, and iCloud sync; Apple TV supports MFi, Xbox, and PlayStation gamepads. Nearly all CD-based cores support CHD disc images, and the native Mednafen core has a custom CHD implementation. The source is published on GitHub under the BSD license. Installation options include the App Store, sideloading with AltStore or SideStore, and building from source. The free plan includes emulation features when sideloaded or built from source. Plus adds iCloud sync and priority support.