Is there such a style called RyuKyu-Te?

[Diamond Snake]

I've seen RyuKyu Kempo, but am looking for -Te not kempo.

Is there a history or system behind this name?

[isshinryu5toforever]

There is a Ryu-te developed by Taika Seiyu Oyata. Ryu-te I suppose is more of an adjective for what Oyata taught. It's supposed to be a self-defense oriented system that is closer to old-style Ryukyu Kempo Jutsu than it is to modern Okinawan Karate, which has a heavy Japanese influence. I've never been to a Ryu-te dojo, but Oyata is pretty legendary in his own right. I have heard that some of the dojo in the US are starting to conform to what Americans think of as Karate. In other words, the strip mall variety. Not too keen on that, but I haven't seen enough to know for sure either.