Well, it was bound to happen. After working on games with relatively original concepts for so long I've finally given in and designed something where your fighter or wizard kills orcs for treasure, under the temporary name Underworld and Overworld. It took a while for me to decide what exactly I wanted out of this project, but I finally found the answer below.
What is this game?
There is nothing new or shocking in this game. It is intended to be a very simple base system for a GM and group of players wanting a game with deadly monsters, huge armies and characters that gain fame and become Kings. It is perfect for a group wanting to quickly have a fantasy adventure as there are very few rules to learn and the document is free.
From this foundation a GM can create their own monsters to break from the classic examples given, using them to populate a world straight out of his imagination. It could be as simple as a one-off dungeon crawl or it could be a full world with empires and warring gods. With this in mind the rules are intended to be as straightforward and open to modification as possible to aid creation of new content and keep the amount of calculating, memorising and paperwork at the game table down to a minimum.
The game is mostly inspired by my happy, younger memories of Fighting Fantasy books, playing Ultima Underworld and enjoying board games like Heroquest and Dungeon.
You can see the game as it stands here.