But this isn’t a film. People replay systems-driven games all the time, because you can tweak the variables and make it feel new. RPGs have done this plenty of times. Interacting with a separate quest line that occasionally intersects with things you did in one of your previous timelines is something that there is absolutely a way to do, and Obsidian has made exactly that type of systems-driven RPG plenty of times.
But this isn’t a film. People replay systems-driven games all the time, because you can tweak the variables and make it feel new. RPGs have done this plenty of times. Interacting with a separate quest line that occasionally intersects with things you did in one of your previous timelines is something that there is absolutely a way to do, and Obsidian has made exactly that type of systems-driven RPG plenty of times.