Hi there. This isn't directly story-games related, but I still hope to tap into your collective knowledge.
A friend and I are currently writing a medium-sized LARP (~25 players), with the premise of LARP-within-a-LARP: during the great plague in Milan (1630), the Duke is holding a special sort of masquerade that he calls "Living Drama", essentially, a pseudo-historical version of a LARP, with rigid rules based on Greek drama. The Living Drama is written and orchestrated by young John Milton, who uses it as a draft for Paradise Lost.
When writing the characters for the 1st-layer game (conniving noblemen). I don't have any trouble with coming up with motivation to enter the game, but I want to make sure they have different motivations for staying in the game and playing it earnestly. So, what I'm looking for is different motivations for roleplayers. So far, I have come up with these ones:
1. To prove some theological or philosophical point (that is, to pursue an in-game goal of some sort)
2. To use the character in order to speak to people with whom you are not supposed to speak outside the game (such as Protestants)
3. To be, if only for a moment, something greater and more powerful than your ordinary self.
4. Pure escapism (there is, after all, a terrible plague raging outside the Duke's palace)
5. To watch over another person, and make sure they do not get carried away by the game.
I would greatly appreciate it if you could come up with more of these. If you could also match these motivations with second-layer characters (characters from the book of Genesis, angels, devils, personifications of emotions, virtues, vices and natural forces), that would be even better.
Additionally, in order to add some flavor to the game, and to make sure people don't confuse first-layer terminology with second-layer terminology, I could use your help in coming up with some Old-timey Italian or Latin expressions for PC, NPC, GM, in-play and off-play.