is a specific version of the Vulkan API runtime installer developed by LunarG. It serves as a support layer that allows your operating system and graphics drivers to communicate with applications (mostly video games and 3D rendering software) using the Vulkan graphics API. Vulkan is designed to provide high-efficiency, cross-platform access to modern GPUs, offering lower overhead and better multi-core processor performance compared to older APIs like OpenGL or DirectX 11.