StepPibsWormier has software for this keyboard. You can find it on the Reddit-Mechanical Keyboard. I have it-albeit, its very simple and focuses on the multiple lighting choices. I have the K87 and swapped out the switches to kiwi's and HyperX's pudding caps. I absolutely love it. If youre into LED lighting this is the one.
I purchased mine seperately from this Drop. It came with the same options. I easily swapped out the switches for a new set of my choosing. For under $100, its a steal any way you slice it.