Hi Mina fawzy,
Be sure you are packaging your game for distribution and compressing the resulting files before trying to publish to the app store. The simplest ways to package a Mac game for distribution is to use Apple’s own Disk Utility in /Utilities/Disk Utility.app & create a compressed disk image. This will preserve all the necessary data & give you reasonable compression ratios. “Stuffit” is also a viable solution.
Let me know if this resolves your issue.
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