> Hmm, there's no reason why you have to disallow their win options. Just have the counter for v99 at the location itself. Like:

Yup, that works too. Personally I'm intrigued by this idea. You could get really creative with it. I'm also intrigued by the other way -- of having an early move decide the course later on, so that you end up doing different things at the same places with some, but not necessarily all, of the same objects -- all toward divergent ends. It would take quite a bit of effort to make this satisfying to play, but well worth the rewards, I think. I may investigate this avenue myself sometime after I finish Game of the Ages.