I am also having issues with this. I'm on 10.14.6
Edit: Adjusted some settings after the update, and the game ran like a dream! This is fantastic, and so much more than I expected going in. If you're at all interested in the role of the press, this game is thought provoking and surprisingly deep. Give it a shot, I stayed up until 4 in the morning with this, and am looking forward to replaying it to explore more story options!
Miguel,
First, can you make sure you UNZIP the .zip file (which has the .app inside). Next can you try this: "It might be a problem with your security settings and using non-apple store apps. If you go to System Preferences > Security & Privacy > General and allow the app manually it should run. I'm still on High Sierra so not sure if this will work for a more recent OS."