Hellfire is a set of 1/300th (6mm) scale science fiction wargames rules which allow you to play a variety of different types of SF games, whilst managing to capture some form of unique flavour that makes the game more than just WW2 with las-cannons. The aim is to produce battles in a universe which isn't overly militarised. It is a universe where the black sheep of the family returns with a battalion of genetically engineered warriors he has hired, to be met by the family who have called out an ad hoc local militia. It is a universe where most armoured vehicles are improvised on site. I haven't provided any background with these rules, there's no 'official universe' and nobody will insist on you using only one company's figures. These rules are generic, clone warriors can battle with Yrchknight Hort riders, ECM troopers can jam guided missiles launched by power armoured space marines. The universe is out there for you to play with.