Michael Linke
Adventurer
I believe the question is really "what is XP and why do characters get it?" If you take rules as written, you get experience points for earning treasure, and defeating (not necessarily killing) monsters. You don't strictly get experience for overcoming traps or solving puzzles (though those are suggested as optional sources). I think the commonality between the main sources of experience gain is that these are actions that further the cause of civilization. You get XP for bringing wealth into the local economy, removing chaotic monsters from the area, or convincing those monsters to leave the area or get jobs and contribute to the society. Most of your XP from adventuring comes from that wealth accumulation, and the little bit you do get from monsters seems to have less to do with the challenge those monsters pose to the party than it does with the impact those monsters have on the locals.
I think you could easily alter the why/how of XP gain with literally any system you want, but the game would and should very much become "about" whatever it is you end up rewarding, and you may need to deprioritize some player character abilities and mechanics in favor of new ones that actually simulate the new pursuits you're rewarding.
I think you could easily alter the why/how of XP gain with literally any system you want, but the game would and should very much become "about" whatever it is you end up rewarding, and you may need to deprioritize some player character abilities and mechanics in favor of new ones that actually simulate the new pursuits you're rewarding.