I've created something that I think is a fairly new concept. I call it a "reverse" mod. Basically I took the art resources and assets from an existing game (Mythic's Dark Age of Camelot) and built a new engine around it.
If anybody is interested, you can download my reverse mod at this link: https://dl.dropboxusercontent.com/u/8974528/VON_Dist.zip
Please note - the above download does not include DAOC resources, either you will have to already have them installed on your system or you can obtain them legally through the link included in the readme file).
I hope this work is enjoyable to some group of people, I have had fun doing it and learned many things. Many thanks to Dawn of Light group, to MJP and to Matias Goldberg and his father for the royalty-free music.
The reverse mod download is 12MB and the original DAOC resources are about 4GB. You can control the game through traditional mouse/keyboard scheme or connect an XBOX controller and play it like an action RPG.
Some of the things I've done with the reverse mod are:
1. There is no networking or multi-player
2. Character animations are masked on top of each other so that running while attacking is possible.
3. Slight improvements to some graphical areas
4. Combat is more action-oriented.
The reverse mod is a work and progress and by no means complete, however it is a fun diversion and includes a complete DAOC resource viewer, so people who get a kick out of examining game art might enjoy it.