I've loved Nobilis since I picked up the Great White Book. But I've wanted something a bit more granular in the character awards system, instead of "one more CP per story." Below, revised from the original post on the Nobilis mailing list, is a session-based experience system for Nobilis.

Requirements

A session-based Nobilis experience system needs to reflect the various things that are gathered during play. Dynasty Points, Character Points, Chancel Points, and refreshes of Miracle Points, are the four things that characters gather during a story (or between stories). The following assumes the average story length is 2.5 sessions.

At the end of the average story, the Familia has 2.5 dynasty points, on average. It has one MP refresh per Familia member, and either 1 CP per Familia member or one chancel point, total. Thus, it seems obvious the system scales things, in part, to the size of the Familia.

On average, characters receive 5 XP a session, modified by GM fiat. Eventually, a more "objective" table will be included, but for now, just assume 5 is the average and modify it from there; this number was chosen for ease of calculations, rather than for any other reason. The system also scales things to the size of the Familia - for purposes of the tables below, X means "number of members of the Familia." These XP can be spent as follows, either by one player, or by a combination of players:

1. 5 points = total MP refresh of one character [no more than once per character per session]
2. 5 points = 1 Character Point
3. X points = 1 Dynasty point

If we assume, once again, that the average story is 2.5 sessions, that means a player gains 12.5 XP, on average, per story. If we assume each character spends 1 XP per session on a dynasty point (thus mimicking the old system), that means they've spent 2.5XP per story, leaving 10 XP. Every character also, assumedly, refreshes their MP pool once per story, costing 5 points, leaving 5 behind. A character point is five points, thus emptying the pool entirely (assuming the XP award per session does average out at five).

Originally, I was considering each attribute separately for purposes of MP refreshing, and though that idea is still attractive, it feels somewhat broken for a character to be able to say, "wow, I just spent all of my AMPs... let's refresh that pool, since my DMPs, RMPs and SMPs are still full, and now I don't have to worry about the Rite." I have since abandoned that idea.

With this system, players get more control over the development of both their characters and their Familia. They can choose to invest more in their Imperator than themselves (through additional dynasty points), they have more control over where they'll get their next wind (MP refresh), and they also get to choose when their characters will improve themselves (CPs). They get to choose which is the most important, individually. On the downside, this means the HGs relinquish some control they had over their stories. Players now decide amongst themselves how often their Nobles regain MPs, and they can even forsake regaining MPs in order to force character advancement.

I don't find that a bad thing. In fact, I quite like it, but one should keep that in mind before switching to this system.