I didn't feel like there was any clear plot driving this story. I didn't like any of the characters, except Marx. In fact, Sam and Sadie are at each other's throats for the majority of the story. Both holding grudges against perceived slights that have been blown way out of proportion and exacerbated by refusing to talk through their issues. I dislike stories where the main conflict is caused by miscommunication.
I enjoyed the discussion of game design and I would love a chance to play Pioneers!