Using Unity3D probably exclusively. I’m also streaming here: http://www.twitch.tv/bcadren
My game is a tactical RPG set in a gladiatorial Arena such that instead of multiple battlefields, as is normal to the genre; there is only one. It’ll probably be a bit larger than one literal screen; but it will be completely non-modal and arcade-like. Few roguelike elements; enemy randomization, drop randomization, etc.