Few, you get your PHP code to a certain size and it's STILL not done.
I've got it to the point where you can, on my offline version, fight a zombie along with a couple of other players. Faked players for now AND even in the full version it's just pulling their name and stats from the database, not a syncronous play.
Indeed that's one of the extra things to do. That I don't really wanna.
But yeah, I get to the point where the game is pretty much fun as a game and I strictly don't have any reason to make fun funner since it's already fun. Yet the extra stuff like pullling other players in, showing a highscore, accumulating favour points and possibly the big one, gathering zombie crafting gear...well, I guess I kind of envisioned because that seems to be the online game template of success. But honestly, while it does add some more fun - my game is already a kind of fun. It'd feel like making a chocolate cake - then sweating alot to whisk milk into cream to pile onto the chocolate cake - it seems a bit much AND alot more work, now I'm at this point.
I'd like to get it out there - I intended to put an offline version on my site first. I may put a barebones version on first. Though it was supposed to be a teaser for registering, so it'll be a teaser for nothing. I dunno.