I see, could therr be an approach to have a starting mission of some sort?
In ‘The Road’ the target would be ‘reach the coast’ or somesuch.
Failing could go with a severe (partially permanent?) moral penalty.
Winning, oh well. Perhaps thats the first thing that allows you to win C:DDA.
The NPC in question could be geared up and gain stats and levels. If said starting mission finishes, perhaps being able to use that character from then on (or if the original one dies) could be a Motivation?
So I raise myself a uber-mensch strength NPC, to walk through house Walls with a sledge hammer should my original character die.
Also a plus would be the starting point. No more searching and travelling for death mobile and stuff when unexpectedly dying but wanting to continue the run.