When I downloaded and ran it, I got just a black screen. I had a similar issue with another submission, but that was because they were using a custom engine which turned out to have a bug affecting only old GPUs. It's strange that it's happening with Godot, since I use that as well and have never had this issue.
For next time, since you're using Godot anyway, consider making a web export to make it more accessible and less likely to have issues like that. It's quite easy to setup and will also help get more plays / ratings since some people might not want to run unknown executables on their PCs.