a powerful, inexpensive version control system for Windows. Based on the widely used GNU RCS, it is fully integrated with the Windows Explorer, providing the most intuitive and easy-to-use configuration management and change control solution in the market
a free / freeware open source tool for 2-D game development. It is designed for the Windows 9x/DirectX platform, and targeted at people spanning a range of skill levels.
Common Development and Distribution License (CDDL) Version 1.0. Millions of development hours worth of code and over 1,600 patents are being contributed to the open source community.