Haven't had a chance to play much as I'm editing a great upcoming game, Red Streets Blue Mats. It's Mixed Martial Arts based on the popular Red Sand Blue Sky and Red Sand Black Moon mechanics.
The author, Tom Hise, has done an excellent job of breaking down twenty different styles of martial arts from around the world. Each has their own Signatures that mimic their real life style. Truly a fun and amazing game with so much variation.
Like the other games, RSBS and RSBM, Red Streets Blue Mats has your fighter starting out in the Fringe Locales, back alleys and in open air octagons formed by the spectators. The goal is to fight your way to the top, the pay-per-view palaces where the money is large and opponents better.
What I like about the game is that Tom has brought Attributes/Signatures from other THW games so they are compatible. You can even use it for fantasy and sci fi. In fact, RSBM and RSBM (Mats and Moon) would work great, allowing you to bring fantasy creatures into the octagon. Ditto 5150 New Beginnings.
Look for Red Streets Blue Mats in the next month or two.