tiny recursive descent expression parser, compiler, and evaluation engine for math expressions

IBM PC/XT emulator

Tiny 2D vector graphics library in C

A modern, portable, easy to use crypto library.

kb single-header C/C++ libraries

A C library that may be linked into a C/C++ program to produce symbolic backtraces

A Space Invaders / Intel 8080 emulator

Public Domain Curses - a curses library for environments that don't fit the termcap/terminfo model, modified and extended from the 'official' version

A curses library for environments that don't fit the termcap/terminfo model.

Text based games from Debian - bsdgames package.

Amstrad CPC cross platform core emulation

AMSTRAD CPC Emulator TTGO VGA32

Multi-platform Sony PlayStation emulator written in C

Experimental PlayStation 2 emulator

PaCifiST, Atari ST Emulator on PC, back in 1996

6502/65C02 emulator library (C99)

OOPoker or "Object Oriented Poker" is an engine that runs Texas Hold'm games. You can play against bots, or let bots play against each other. No installer is provided, only the source, because the …

Source for various Spectrum-related tools from John Elliot's web site.

LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining …

Reverse engineer and rewrite real mode DOS programs!

An open-source reimplementation of Cryo's DUNE game (WIP)

Classic99 TI-99/4A Emulator for Windows, QI3xx series

Z-Machine interpreter in plain C

IL2C - A translator for ECMA-335 CIL/MSIL to C language.

A very complete internationalization library for Lua with LÖVE support 🌕💕

Homebrew 65C02 computer on a backplane

High performance UI layout library in C.