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Is a live DVD Linux distribution dedicated to computer-aided engineering (CAD) and finite element analysis.
An open-source, free-to-play hardcore arcade/RPG. You start as a pilot of a small fighter ship on the edge of a star system, and you're free to explore the game world, land on planets, fight with enemies, upgrade your ship and equipment, hire mercenaries, mine asteroids, and more.
A powerful open source cross-platform solid modeling system that includes interactive geometry editing, high-performance ray-tracing for rendering and geometric analysis, a system performance analysis benchmark suite, geometry libraries for application developers.