Open Source C Emulators

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VICE is an emulator collection which emulates the C64, the C64-DTV, the C128, the VIC20, practically all PET models, the PLUS4 and the CBM-II (aka C610). It runs on Unix, MS-DOS, Win32, OS/2, Acorn RISC OS, BeOS, QNX 6.x, Amiga, GP2X or Mac OS X machines.

The Null-modem emulator (com0com) is a kernel-mode virtual serial port driver for Windows. You can create an unlimited number of virtual COM port pairs and use any pair to connect one COM port based application to another. The HUB for communications (hub4com) allows to receive data and signals from one COM or TCP port, modify and send it to a number of other COM or TCP ports and vice versa.

Wine is an Open Source implementation of the Windows API on top of X and Unix. Wine provides both a development toolkit for porting Windows sources to Unix and a program loader, allowing many unmodified Windows binaries to run on x86-based Unixes.

ZSNES is a SNES/Super Famicom emulator for x86 computers. It runs on Windows, MS-DOS and Linux/FreeBSD and supports mode 7, sound, Super FX, and a lot more.

The Free Unix Spectrum Emulator (Fuse): an emulator of the 1980s home computer and various clones for Unix, Mac OS X and Windows.

KernelEx is an Open Source compatibility layer with an aim to allow running Windows 2000/XP-only applications on Microsoft Windows 98 and Microsoft Windows Millennium operating systems.

Project has moved to https://github.com/visualboyadvance-m/visualboyadvance-m

CDemu - a virtual CD/DVD drive for Linux. Project includes Linux kernel module & userspace utilities.

An open source NES Emulator for Windows and Unix that features solid emulation accuracy and state of the art tools for power users. FCEUX's source code is now hosted at https://github.com/TASVideos/fceux/ win32 autobuilds @ https://ci.appveyor.com/project/zeromus/fceux/build/artifacts

86Box is a low level x86 emulator that runs older operating systems and software designed for IBM PC systems and compatibles from 1981 through fairly recent system designs based on the PCI bus. Easy to use interface inspired by mainstream hypervisor software. Low level emulation of 8086-based processors up to the Pentium with focus on accuracy. Great range of customizability of virtual machines. Many available systems, such as the very first IBM PC 5150 from 1981, or the more obscure IBM PS/2 line of systems based on the Micro Channel Architecture. Lots of supported peripherals including video adapters, sound cards, network adapters, hard disk controllers, and SCSI adapters. MIDI output to Windows built-in MIDI support, FluidSynth, or emulated Roland synthesizers. Supports running MS-DOS, older Windows versions, OS/2, many Linux distributions, or vintage systems such as BeOS or NEXTSTEP, and applications for these systems.

This project is a fork of the original Nestopia source code, plus the Linux port. The purpose of the project is to enhance the original, and ensure it continues to work on modern operating systems.

PearPC is an architecture independent PowerPC platform emulator capable of running most PowerPC operating systems. It includes a JITC for x86-Processors.

Box86 lets you run x86 Linux programs (such as games) on non-x86 Linux systems, like ARM (the host system needs to be 32bit little-endian). Because box86 uses the native versions of some “system” libraries, like libc, libm, SDL, and OpenGL, it’s easy to integrate and use with most applications, and performance can be surprisingly high in some cases. Many games already work without much tweaking, for example: WorldOfGoo, Airline Tycoon Deluxe, and FTL. Many of the GameMaker Linux games also run fine. (There’s a long list, among them are Undertale, A Risk of Rain, or Cook Serve Delicious.) Box64 is the 64bits version of Box86. It is used to run x86_64 binaries on ARM64 (i.e. aarch64) Linux. There are some YouTube channels where you can see box86 and box64 in action: MicroLinux, PILabs, and The Byteman at least.

An open-source emulator for the 3DO Game Console.

ASAP (Another Slight Atari Player) plays and converts 8-bit Atari music (*.sap, *.cmc, *.mpt, *.rmt, *.tmc, ...) on modern computers and mobile devices.

A free and open-source application that emulates the original Microsoft Xbox game console, enabling people to play their original Xbox games on Windows, macOS, and Linux systems. The source code for xemu is publicly available. Users are invited to help improve the project! xemu runs natively on Windows, macOS, and Linux platforms. Pre-compiled binaries are available for Windows, macOS, and Ubuntu. Networking is supported out of the box. Connect to other instances of xemu and even real Xboxes, locally or over the Internet. Built on SDL2, xemu supports virtually all gamepads. Connect up to 4 controllers at any time, just like a real Xbox. No need to wait for game checkpoints. xemu supports saving the current state and loading it back up at any time. Breathe new life into your original Xbox games by easily scaling up the resolution that games render at.

Moved to https://atari800.github.io/

Fuse for macOS is a macOS port of The Free Unix Spectrum Emulator (Fuse) (an emulator of the 1980s home computer and various clones).

A MAME and MESS port with an advanced video support for Arcade Monitors, TVs, and PC Monitors. It also contains a bootable Linux LiveCD/USB, a frontend with animated MNG/MP3 snapshots, a rom manager, and recompression utilities for compressed files.

In this version we have added support for high-resolution 3D rendering. Try the new “GPU Scaling Factor” feature to increase the 3D resolution beyond the native resolution of 256×192 pixels. Also, the Cocoa frontend sees continued radical enhancements and while the Windows frontend sees some new incremental enhancements. DeSmuME is a very CPU demanding app. While many users will see DeSmuME as a toy (and use it as such), it is actually a very sophisticated piece of software with lots of features. Also, DeSmuME focuses more on compatibility and features than on speed. Our philosophy is this: You can always mow some extra lawns or babysit some more rugrats to buy upgrades for your computer; but there's nothing you can do to fix compatibility or gain new features. We take care of our side of things, so you should take care of yours. DeSmuME is mostly CPU intensive and less GPU intensive.

vDos is specific to run serious (mainly text mode) DOS applications in Windows 32 or 64-bit, Windows 7 or later. You need at least already use such a DOS application to appreciate vDos. If you don’t, want to play with DOS (or its games): vDos isn’t meant for you! Recent versions (latest 2024.05.01) and the vDos forum are now hosted at: https://www.vdos.info

Use Wine (Wine Is Not an Emulator) to run Windows applications on Darwin and Mac OS X.

kvm, or kernel-based virtual machine, is a device driver and userspace component for Linux that utilizes hardware virtualization extensions such as Intel's VT to create virtual machines running on a Linux host.

This emulator is capable of providing a faithful replication of the HP48. It also has a debugger for the saturn processor.