Conquest is a real-time multi-player space warfare game originally written in ratfor for the vax/vms platform. It was an early predecessor to netrek. It supports OpenGL rendering and sound.
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.