Into the Forest Research Final

When opening the game you may run into the problem saying the file is damaged and should be moved to the trash. 

Go to Terminal (its an app) in your search bar, open it, and enter the following line

sudo spctl --master-disable

It should then ask you for your password, the one that lets you change your computers settings and log in from the start screen.

I've also included a screenshot of that, if that helps.

The final step is to drag it into your applications folder.