I am running the Steam version of Spiral Knights with Mac OSX 10.9.2. When I try to start the game, it opens the standard patching screen, downloads and applies the latest patch, then immediately flickers and shuts down. Every time I try to validate the game files through Steam, it tells me "9 files fails to validate and will be reacquired." Then, when I restart the game, it downloads and installs the same patch again, and dies in exactly the same way.