Huh. I didn't even know that was a thing lol. Hopefully we'll never hit that point before the game is done, but if it does get to that point I'll look into it!
I was trying to remember a game on here which did it this way and Out of Touch is one if you care to have a look.
There's others which also use a multi-step zip archive process but feel that just adds more complication and potential for user error.