Can I expand this? My actual project has~2800 files and I can't let it playable on browser. It has only 907MB, but I can't delete any files, so I couldn't satisfy the 1000 files limit.

Your game sounds very large and not something we would encourage for a browser embedded game. Please check our guidelines here: https://itch.io/docs/creators/html5#zip-file-requirements

Hey there,

These limits are there for a reason, the general suggestion is to try to optimise your project as best as you can. This is to improve the user experience while playing games. Try to find files that can be merged with other files, or delete ones that are no longer part of the project.

If there’s nothing that can be done, you can always contact support, but it’s high likely you’ll get a similar suggestion.

Hope that helps :)