Showing 128 open source projects for "custom operating systems"

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  • 1
    Winlator

    Winlator

    Android application for running Windows applications with Wine

    A software that enables users to run Windows applications on Android devices, providing an emulation layer that supports various Windows applications and games.
    Downloads: 1,990 This Week
    Last Update:
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  • 2
    VirtualBox

    VirtualBox

    Virtualization software for x86_64 hardware

    VirtualBox is a powerful open-source full virtualization software that allows a user to run one or more “guest” operating systems simultaneously inside “virtual machines” on a single physical “host” machine. It supports a wide variety of host platforms (Linux, Windows, macOS, Solaris, etc.) and guest OSes, enabling, for example, running Linux on a Windows PC, running Windows Server on a Linux host, or even legacy OSes in a controlled environment.
    Downloads: 141 This Week
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  • 3
    iSH

    iSH

    The Linux shell on iOS

    iSH is an open source project that allows for a Linux shell environment to run locally on your iOS device. It does this through a usermode x86 emulation and syscall translation. With iSH you can run Linux applications and programs on iOS, access the Alpine package manager, and install programs with apk add <name>. iSH also features a keyboard addition that makes navigation a whole lot easier.
    Downloads: 26 This Week
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  • 4
    Provenance

    Provenance

    An iOS & tvOS Frontend for Multiple Emulators

    Provenance is an iOS & tvOS frontend for various emulators, supporting multiple Atari, Bandai, NEC, Nintendo, Sega, SNK and Sony console systems. It offers smooth and accurate, full-speed emulation to give you an awesome and genuine playing experience. Provenance is built with a host of awesome features, such as save anywhere and battery saves, controller support, automatic ROM matching and ROM customizations, and many more. Provenance supports a great number of console systems, with more...
    Downloads: 6 This Week
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    86Box

    86Box

    Emulator of x86-based machines based on PCem

    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.
    Downloads: 100 This Week
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  • 6
    v86

    v86

    x86 PC emulator and x86-to-wasm JIT, running in the browser

    ...Overall, it provides a powerful way to explore operating systems, retro computing, and low-level system behavior directly from a web browser.
    Downloads: 4 This Week
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  • 7
    rawdrawandroid

    rawdrawandroid

    Build android apps without any java, entirely in C and Make

    rawdrawandroid is a minimalist framework for building Android applications entirely in C without writing Java or Kotlin application code. It uses the Android NDK, JNI, native activity APIs, Makefiles, and Rawdraw to produce extremely small APKs. The project emphasizes transparent build commands instead of relying on large IDE-managed build systems. Developers can compile, install, and launch applications rapidly while maintaining direct control over packaging and native code. Helper...
    Downloads: 0 This Week
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  • 8
    SkyEmu

    SkyEmu

    Game Boy Advance, Game Boy, Game Boy Color, and DS Emulator

    ...It is designed as a low-level emulator that accurately reproduces hardware behavior while still offering a smooth and accessible user experience across a wide range of platforms. The emulator is highly portable, supporting desktop operating systems, mobile devices, and even web browsers through WebAssembly builds. SkyEmu includes advanced visual enhancements such as upscaling shaders, color correction, and screen effects that mimic original hardware displays. It also features extensive debugging tools, making it useful not only for players but also for developers working on homebrew or reverse engineering. ...
    Downloads: 237 This Week
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  • 9
    VICE

    VICE

    Versatile Commodore Emulator

    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.
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    Downloads: 3,612 This Week
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  • 10
    Wine

    Wine

    Run Windows applications on Linux, BSD, Solaris, and Mac OS X

    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.
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    Downloads: 1,939 This Week
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  • 11
    ASAP - Another Slight Atari Player
    ASAP (Another Slight Atari Player) plays and converts 8-bit Atari music (*.sap, *.cmc, *.mpt, *.rmt, *.tmc, ...) on modern computers and mobile devices.
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    Downloads: 98 This Week
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  • 12
    The Free Unix Spectrum Emulator (Fuse): an emulator of the 1980s home computer and various clones for Unix, macOS and Windows.
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    Downloads: 1,841 This Week
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  • 13
    BMDFM

    BMDFM

    Binary Modular DataFlow Machine (BMDFM)

    Binary Modular DataFlow Machine (BMDFM) is a software package that enables running an application in parallel on shared memory symmetric multiprocessing (SMP) computers using the multiple processors to speed up the execution of single applications. BMDFM automatically identifies and exploits parallelism due to the static and mainly dynamic scheduling of the dataflow instruction sequences derived from the formerly sequential program. The BMDFM dynamic scheduling subsystem performs a...
    Downloads: 6 This Week
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  • 14
    V.Dream

    V.Dream

    V.Smile family emulator

    V.Dream is an emulator for the V.Smile family of consoles, developed by Néo Foderé de Frutos under the FODSOFT brand and written in C for mobile and desktop devices.
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    Downloads: 25 This Week
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  • 15
    AdvanceMAME
    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.
    Downloads: 18 This Week
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  • 16
    janus-UAE

    janus-UAE

    Amiga Emulator (UAE) for AROS

    ATTENTION: This repository is not active anymore. Janus-UAE moved to github in 2026, so please got to https://github.com/o11i/janus-uae/ for any possible updated sources. Janus-UAE (short: j-uae) is a transparent (rootless) Amiga Emulator for the AROS Operating System, based on the original UAE by Bernd Schmidt and E-UAE 0.8.29-WIP4 by Richard Drummond (sf.net unix name uaedev)). Janus-UAE2 is a direct port of WinUAE including its GUI to AROS. Janus-UAE2 is still in early development...
    Downloads: 3 This Week
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  • 17
    Hatari

    Hatari

    Hatari is an emulator for the Atari ST, STE, TT and Falcon computers

    Hatari is a cycle-accurate Atari ST emulator for Linux and other systems that are supported by the SDL library. The project has been moved to https://www.hatari-emu.org/ now, but this site will stay for providing the historic releases before version 1.0.
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    Downloads: 40 This Week
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  • 18
    zBoy

    zBoy

    a multiplatform, full-featured GameBoy classic emulator

    zBoy is a multiplatform GameBoy emulator that provides a load/save feature, can perform PCX screenshots either manually or automatically (every few seconds) and emulates an internal battery for ROMs that were designed to use one (this allows to use the internal save option provided by such games, remember highest scores, etc). zBoy supports some additionnal features, too, like intelligent saving of hi-scores for some games that aren't able to save their hi-scores table by themselves...
    Downloads: 13 This Week
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  • 19
    Unreal Speccy Portable

    Unreal Speccy Portable

    Portable ZX-Spectrum emulator based on UnrealSpeccy 0.37.3 by SMT

    Portable ZX-Spectrum emulator supports Z80 128K (Pentagon) AY/YM, Beeper, Beta Disk, Tape, Kempston Joystick/Mouse, Snapshots, Replays. Supported formats: sna, z80, szx, rzx, tap, tzx, csw, trd, scl, fdi, zip. Created to be ported to many platforms such as Windows/Linux/Mac/Symbian/Dingoo A320/Android/iOS/PSP/Raspberry Pi, ...
    Downloads: 0 This Week
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  • 20
    dracxterm

    dracxterm

    An Android terminal that can also run Linux, no root needed

    dracxterm is a terminal for Android. Open it and a shell is waiting. If you want a full Linux, the app can install Debian 13 or Kali inside its own storage, and you work as you would on a computer. The phone does not need root, and there is no account to create. The terminal draws colours and keeps scrollback, so full-screen programs like nano and htop look right. UTF-8 text displays properly, CJK included. You get five workspaces, each with its own shell and history, plus an extra key...
    Downloads: 3 This Week
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  • 21
    uCON64 is a tool to backup all kinds of video games. It supports almost every available backup unit for cartridge-based consoles and performs many other tasks like ROM hacking.
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    Downloads: 182 This Week
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  • 22
    RVVM

    RVVM

    The RISC-V Virtual Machine

    ...The system is capable of running full operating systems such as Linux, FreeBSD, and OpenBSD, as well as supporting userland emulation for running RISC-V applications directly on foreign hosts. RVVM includes a rich virtual hardware environment, including networking, storage devices, and input systems, allowing for realistic system-level emulation.
    Downloads: 4 This Week
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  • 23

    ArkiFuse - Arki's mod of "FUSE" emulator

    Builds of "FUSE" emulator with my own mods

    ArkiFuse is a free (GPL v2+) ZX Spectrum emulator based on FUSE Spectrum emulator (https://sourceforge.net/projects/fuse-emulator/). ArkiFuse contains some additional modifications and fixes, which have not been accepted or merged (yet) into the original FUSE project. See "Files" tab for download options of distribution files. Individual modifications/features can be tested with separately built distribution file(s) or .. - Nightly build of (Fuse) master, without mods - ...
    Downloads: 0 This Week
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  • 24
    puNES

    puNES

    Qt-based Nintendo Entertaiment System emulator and NSF/NSF2/NSFe Music

    ...It supports a wide range of mappers, has a robust set of debugging tools, and provides accurate audio and video emulation down to the scanline and pixel level. puNES is designed to run on multiple operating systems and includes a highly customizable interface with support for shaders, rewind, netplay, and recording features. It's well-suited for both casual players and preservationists seeking an authentic NES experience.
    Downloads: 27 This Week
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  • 25
    Cambridge Z88

    Cambridge Z88

    Software development for 4Mb portable, using Z80 CPU and AA batteries

    This project is for the portable computer "Cambridge Z88", produced by Sir Clive Sinclair (of ZX Spectrum fame). We continue to support software development (ROM, 3rd party apps on memory cards and desktop applications). We have moved to https://cambridgez88.jira.com/wiki (development, source code and documentation). However, we continue to publish files for download here.
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    Downloads: 10 This Week
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