Hi there, are you on Mac? If so, we're aware that there's an issue with the app saying it's "damaged" when trying to launch it on OSX.
You have two options:
1) Launch the game via the Itch.io app
2) Use the steps outlined in the Install Instructions.
Apologies for the inconvenience, this will be resolved for the full release.
If you have another problem with accessibility, please feel free to add more detail to your comment. Thanks!