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Iron Engine is a game engine developed by Ironclad Games and is used in the PC game Sins of a Solar Empire. At the moment, the engine only supports DirectX 9.0c effects, not DirectX 10.

Iron Engine supports a number of advanced features including per-pixel, specular lighting, dynamic fractal generation, post-process bloom filtering, environment mapping, custom pixel and vertex shaders for all meshes and effects and an advanced particle system.