It's just a leap of faith (which is really what Kickstarter etc are anyway). Tried to be clear on that. If you mean "how will people who 'pre-bought' the game collect it once it's out if they're no longer on the substar?", my plan is probably something like wait a few days to see where all the new sub stuff lands, then reach out to everyone on the substar and ask everyone who "pre-bought" (ie, just planning to sub for a month or two) to send me an email saying so with their substar username. I'll put that in a list, and then email everyone a copy once the game's ready. Something like that. And of course everyone who's in the substar when the game is finished will get it automatically.