For Mac people : getting "The application cannot be opened" ?
Then you need to add execute rights to the start file INSIDE the app:
1. open a terminal
2. type chmod +x and then DRAG the app from the Finder to the terminal, the path + app will be filled in automatically
3. continue with typing /Contents/MacOS/TheSevenRealms
4. press enter
The full command will sort of look like this :
chmod +x <path>/TheSevenRealms.app/Contents/MacOS/TheSevenRealms
If there is no feedback , all is good. Close the terminal.
After that, right click once on the game and select OPEN. Close the error message and do the same thing again. You can now select OPEN in the message and the game will start. From now on, you no longer need to do the right-click.