It feels like advancement and leveling up is almost a requisite of a roleplaying game. (I know it's a big assumption; is it really necessary? Or is it just an expectation?). Sadly, I'm stuck coming up with one for Uncharted Worlds (shameless plug whee
), and was hoping for a bit of inspiration and/or discussion about various good (and bad) leveling systems, what they bring to the table, etc.
What advancement system stands out as being particularly well designed? What makes a 'bad' leveling system? Is there a way to make a narratively satisfying leveling/advancement system that doesn't feel forced?