I've updated a Mage: The Ascension gdf to be compatible with 4th edition GURPS.
Corrections done as followed:
Advantages
Categories are Magi, Magi Spheres, and Magi Essences,
Arete requires Avatar,
Avatars need Essences (although I haven't figured out how to make essences pop up as required for Avatars yet),
Skills
Cleared out most skills because they were already in the basic book. Do is a specific name for an "Ultimate" or Origin style. If using Martial Arts, use something along those lines for Do. Skill-wise the only thing brought in here from before is the following:
Area Knowledge the Umbra and Survival Umbra
Arete has been modified so that it's a Will/VH skill with a limit on it based on your Arete level
Rotes are included (quite a few rotes actually) from mostly 2nd & 3rd ed, some modified for the 20th Anniversary Edition. I've included a couple of home-brew rotes as well with explanations as to how they work.
There's also a new "Blank Rote" which will ask you to name the rote, ask what spheres you want to use for it (do not use a single sphere more than once, just pick the highest level of that sphere), and it will automatically give you a -1 to every sphere beyond the first representing difficulty. They're setup as "Techniques", so 2 points required for the first level and 1 point for every additional level after that. (Thanks Armin and Eric for helping me get that ironed out).
Get this GDF
Here