Hi, all-- we recently made a game demo for a game jam, and we'd like to update/iterate on it to make a full game.

We're pretty new to itch.io, and we're not sure what the community norms are for this kind of big update. Does one update the demo page, add new files and such? Does one make a new game and leave the old one up?

Thanks!

It depends, both ways can be right for you, depending. It's easier to manage a single game page, so try that first maybe. You can even mark the old file as a demo, so both versions can coexist without confusion, you can add a minimum price while leaving the demo free, and so on.

Usually when it comes to game jam submission, developers post both versions: jam version and post jam version in game's page. This way, anyone who accesses the page could see both versions and choose which one to play.