This is great RNG for games although most computer scientists would strongly disagree. We focus so heavily on having huge cycle length for RNG that we forget that human memory is not all that great at remembering exact sequence of even just handful of random numbers, let alone 255 of them. So you don't need RNGs with guarantees of huge cycles for gaming scenarios like adding error in to projectile's path. The advantage of this RNG is that it's blazingly fast (think all the cache hits!). Of course this would be useless for any real work on physics simulation or weather simulation etc.