Hi there! Thank you for downloading our game!

When we were testing What Remains of Me on our MacBook Air running Mac OS X (Big Sur), we encountered an issue where we were unable to run the What Remains of Me app because we did not have permission to do so. Here are the steps we recommend to fix this issue:

1. Go to the following StackOverflow post*: https://stackoverflow.com/questions/64842819/cant-run-app-because-of-permission-...
2. Follow the instructions given by smithmm in the "Answers" section. Please note that this is not the accepted answer, but it is what worked for us.
3. After doing this, you will be prompted to enter your password into the terminal. Type your password and press enter.
4. Try opening the app again. 
5. If it says it can't open because it is from an unknown developer, go to System Preferences, Security and Privacy.
6. There will be a prompt asking if you would like to open a recently blocked application. Open the app from this prompt!

We apologize that this is such an issue,  hope this fix works out!

*In case there is an issue with the stack overflow post, here is the copied version of the answer that we found helpful:

From smithmm:

Open Terminal or iTerm and type sudo chmod -R 755, then drag the .app into the window, which will bring the full path into Terminal or iTerm. This worked for me, moving the -R option directly after chmod.

It will look like this:

sudo chmod -R 755 Path\ to\ app\ file.app 

Press return.