647 Open source projects that are alternatives of or similar to retro-computing

Notepad++ Syntax Highlighting for 6502 Assembly (and NESASM)

vc64web - web based Commodore 64 Emulation with CSDb access for thousands of demos at your fingertip

Nintendo Entertaiment System emulator and NSF/NSFe Music Player (Linux, FreeBSD, OpenBSD and Windows)

Adventures into retro 8 bit Commodore 64 programming

NES emulator in javascript.

Fully documented and annotated source code for Angus Duggan's Elite-A on the BBC Micro

A Javascript NES Emulator

Free open-source compressor for apLib with 5-7% better ratios

A HAT for the Raspberry Pi, that allows to emulate the Commodore C64 floppy disk drive 1541. Switches and IEC-Bus detachable.

Use a Raspberry Pi as fast mass storage solution for your Commodore 8-bit computer using just the datassette port.

Convertron3000 commodore 64 graphics converter

Fully documented and annotated source code for the disc version of Elite on the BBC Micro

Another NES Emulator - written for fun & learning - first implementation of wideNES

A JavaScript NES emulator.

NES / Famicom emulator for iOS, Mac, Raspberry Pi, Windows, Linux and RetroArch.

A Commodore (CBM) BASIC V2 interpreter/compiler written in Java

6502 based architecture for OpenComputers

A Java framework for building highly customizable PETSCII-enabled BBS, accessible from Commodore 64/128

MOS 6502 emulator written in Rust

Awesome Lists of retrocomputing resources (6502, Apple 2, Atari, ...)

64tass - cross assembler for 6502 etc. microprocessors - by soci/singular - [git clone from the original sourceforge repo]

Commodore 64 OS running on Atari 8-bit hardware

A Scala Commodore 64, 128, VIC20, CBM2 and SuperCPU emulator

Mandelbrot set drawers for vintage hardware

Emulators for MOS 6502 based systems written in TypeScript

Move your Amiga 2000 CPU to the Coprocessor slot!

Commodore 64 VIC-II 6567/6569 Replacement Project

4 MB Fast RAM Expansion for the Commodore Amiga 600

Open Hardware 1 MB Chip RAM Expansion for the Commodore Amiga 600 Computer

Mad Pascal Compiler for 6502 (Atari XE/XL, C64, C4Plus)

C64 Christmas Demo in 6510 Assembly

PDP-6 Emulator

6502 Forth-83 dialect for the Commodore PET 2001

editor for the Commodore 64

Raspberry Pi extension board for the PI1541 project.

A .Net-based Cross-Assembler for Several 8-Bit Microprocessors

6502 CPU emulator, assembler and disassembler written in Go

Roland Gustafsson's RWTS18 source code.

DOSee is a DOSBox based, MS-DOS emulator for the web

PSP Emulator written in Kotlin for JVM, JS and Native. Can work as PWA.

The Eight Bit Algorithmic Language for Apple II, Commodore 64 and VIC20

A curated list of original and reverse-engineered vintage 6502 game sourcecode.

NVIDIA Falcon Microprocessor Suite

Native Pcode emulator

A fast usermode x86 and x86-64 emulator for Arm64

A NodeMCU (ESP8266) based WiFi modem for the C64's user port

A work-in-progress SNES emulator written in Rust

A cross platform tool to convert images to c64 format.

FPGA Verilog implementation of 1949 EDSAC Computer with animated tape reader, panel, teleprinter and CRT scope

DeSmuME is a Nintendo DS emulator

Control Amiga add-on boards through mouse buttons

6809 and OS-9 emulator in Java

A toy GameBoy Color emulator written in golang.

Detect x86 shellcode in files and traffic.

An Understandable 6502 Emulator

volksFORTH is a 16bit Forth System maintained by the German Forth Gesellschaft e.V.

An assembler for the 6502 microprocessor written in Ruby

Commodore 16 schematics and PCB, redrawn in Kicad

A 65C02 profiler

Game Boy, Game Boy Color, and Game Boy Advanced Emulator