Thousand Parsec is a framework for turn based 4 X's game (eXplore, eXpand, eXploit, eXterminate). Designed for long games, supporting massive universes and has an easily expanded tech tree.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.