The Extension Pack for UT99 is an SDK full of new features/tools improving the Unreal Engine 1 in a wide range. Besides tons of new visual features it improves physics, gameplay and AI, contains a new render (currently OpenGL only) and bundled tools.
"Vikings" is an open-source role-playing game aimed for multiple platforms, with both online and offline capabilities.
xswifs stands for: cross SoftWare Interfaces. This project provide examples (snippets) for interfacing various software tools and languages with various mechanism. It has been created to help in HW/SW co-simulation and to provide benchmarks.