Collection of malware source code for a variety of platforms in an array of different programming languages.

BIOS for Intel 8088 based computers

Source code of GEOS 2.0 for the Commodore 64 and 128

An open source sort-of CP/M 2.2 distribution.

A project to create unencumbered open-source ROMs for use on selected retro computers

Tetris in 6502 for the Commodore 64

A patch for Commodore 64 and Plus/4 Elite that removes the flicker

C64/C128 MIDI flash interface

LUnix Next Generation - a Little Unix operating system for C64/128/Atari and any 6502-based machine

SE BASIC - A free BASIC interpreter written in Z80 assembly language

ZX Spectrum Next Lemmings

Synthesizer program for the Commodore 64 computer designed with live performance in mind. Includes arpeggiator, portamento, stereo SID and MIDI support, realtime filter control, many other features.

Send and recieve http requests into banks - for the Spectrum Next

Ethernet for the Sinclair ZX Spectrum

Port of Bubble Bobble for the Spectrum Next

Net tools for any 128K+ spectrum with ESP-12 connected to AY-chip.

a multithreaded kernel and a gui for zx spectrum 48K

Disassembled Source Code for the C64 game Iridis Alpha by Jeff Minter

ZX Spectrum Next (z80) Mod player

MIOS8

A C64 based palette editor for c0pperdragon's C64-Video-Enhancement project

xyz is a complete operating system for zx spectrum 48k consisting of: the x compiler suite, the y os and the z gui.

C64 Chat Cartridge, 2023

Commodore 64 (or MEGA65) "AdLib" player (for DOSBOX DRO files) using SFX Sound Expander Cartridge or similar

An action game for the Mega65

Dr Slump's esxDOS NMI Navigator

Rubicon protection reverse engineering and recreation from scratch.

C64 Flimbo's quest , Leveleditor and levels

A Studio Ghibli inspired fan game for the Commodore 64