Hey there! I tried downloading and running your game but looks like it's missing some necessary files that Unity includes. Got an error message that said "The code execution could not be completed because UnityPlayer.dll was not found." Usually Unity includes all these files in a folder for the build, and then you upload the full build folder to itch.io.
Sorry it didn't work out for you. If you're able to upload a build somewhere else, let me know and I'll try it out.