World of Warcraft Engine Experiment - a custom opensource client.

Diablo build for modern operating systems

Source code for pbrt, the renderer described in the third edition of "Physically Based Rendering: From Theory To Implementation", by Matt Pharr, Wenzel Jakob, and Greg Humphreys.

Petition to open source Flash and Shockwave spec

JK2MV - improved, modernized JK2 client and server

An open source re-implementation of RollerCoaster Tycoon 2 🎢

Free/Libre Action Roleplaying Engine (engine only)

Getting Soldier of Fortune 2 Multiplayer to work by using a heavily modified JK engine

Community effort to maintain and improve Jedi Academy (SP & MP) + Jedi Outcast (SP only) released by Raven Software