I offer the full version of my game for $1, but want to update it to a new version. I can't see a way of doing this without adding a new file & removing the old one. What will happen when someone who has paid tries to download the new version? Will it ask them to pay again?
If so, is there a better way to update a game file without having to charge them again?
When someone pays for your game, they gain access to all files available in that project indefinitely. That means if you upload a new file, and delete the older one, users will be able to access it. The only exception to this, is if you’ve set a different price to a specific file, but I’m not sure what happens if that file is then removed.
One way to make updating easier, is to use the Itch’s tool “butler”. This allows you to upload a project, and also update it on the same file, while also keeping all older versions available in the Itch app. Also users using the app will be able to update their game without re-downloading the whole project, as “butler” knows how to update only files that need updating.
More information can be found on Itch - Introduction - The butler manual
Even if you don't use butler, as long as you upload your file with the same filename as before, it should replace the previously updated file. You can see that file updating with a progress bar on the page, or see it uploading as a new file if you accidentally used a new filename, and afterwards you can view your page and see the upload date has been updated. I was doing this for a long time, but I started using butler recently. Similar deal, as long as you use the same channel name when you upload, it'll update the same file, or create a new one if you accidentally type a different channel name.
