Large world Support is a must for me
There was talk about this a while back and it is not possible to do as far as I am aware in C2.
Just add scirra dot com
/forum/viewtopic.php?f=146&t=119151
because I am not allowed to post links yet
Really, we have the tools to do this now...sort of. To practically do it though, you need a way of spawning objects by name, which necessitates using a third party plug by rexrainbow:
I've never actually implemented this, but basically the way it would go is that you build your open world in one layout, have a function that loops thru that layout storing the attributes of all the objects within it(position, inst vars, etc), then store that file as JSON and use it to spawn everything in/out of a blank layout. Otherwise, for a truly huge world, the loading time would be insane.
That being said, this could be streamlined immensely by a few extra built-in actions, as detailed in the thread you linked.