This is an extremelly inovative game. When one hear about "solo RPGs", usually people are jsut talking about "Choose you adventure"-like titles. That's not the case here; Quill is really a solo RPG. I find really enjoyable creating a character with some backstory (usually a single paragraph), and aftwerwards, comming up with how the results of the letter changes this character. I believe that chaining stories while maintainign the same character would be really cool. I'm looking forward to do that soon.
All in all, Qull is a creative writing exercise, mixed with RPG. It's really enjoyable, and I intend to keep on playing it regularly onwards.
[5 of 5 Stars!]