burgerbecky

Retro68

a gcc-based cross-compiler for classic 68K and PPC Macintoshes

3DO-Tetris

Source for REAL 3DO Tetris

lba2-classic

scummvm

ScummVM main repository

grief

GRIEF - BRIEF clone

Microsoft-3D-Movie-Maker

This is the source code for the original Microsoft 3D Movie Maker released in 1995. This is not supported software.

xcodelegacy

Legacy components for XCode 4-12 (deprecated compilers and Mac OS X SDKs)

freedo

MonitoRSS

MonitoRSS RSS bot (formerly known as Discord.RSS) with customizable feeds. https://monitorss.xyz

fastbuild

High performance build system for Windows, OSX and Linux. Supporting caching, network distribution and more.

Quesa

This is a 3D rendering and scene graph library for macOS and Windows. Written in C++, BSD license.

KallistiOS

A homebrew SDK/pseudo-operating system for the Sega Dreamcast. This repository is a mirror of the official SourceForge repository for KOS.

DeloresDev

Read all about it on GrumpyGamer:

sin-ex-game

Nightdive Studios SiN Gold Game Source

optidoom3do

A port/enhancement of the original Doom 3DO source code.

buildbot

Python-based continuous integration testing framework; your pull requests are more than welcome!

cc65

cc65 - a freeware C compiler for 6502 based systems

Nuon

Nuon manuals, service manuals, and misc files.

OpenTimelineIO

Open Source API and interchange format for editorial timeline information.

open-source-flash

Petition to open source Flash and Shockwave spec

geos

Source code of GEOS 2.0 for the Commodore 64 and 128

lzfse

LZFSE compression library and command line tool

crunch

Advanced DXTc texture compression and transcoding library

DXUT

DXUT is a "GLUT"-like framework for Direct3D 11.x Win32 desktop applications; primarily samples, demos, and prototypes.

RetroConnector

RetroConnector series of open source adapter boards for Apple || series computers.

python-cmdline-bootstrap

http://gehrcke.de/2014/02/distributing-a-python-command-line-application/

ciderpress

CiderPress Apple II archive utility for Windows

steamos_mesa

Patched branches of Mesa used in SteamOS

issrc

Inno Setup is a free installer for Windows programs. First introduced in 1997, Inno Setup today rivals and even surpasses many commercial installers in feature set and stability.

doxygen

Official doxygen git repository