Those who play on Windows cannot have two versions of the game installed, as the installation program detects old installations and does not allow installing without removing the previous one. Now that the new version is close and we need to test it, I thought it would be a good idea to share this with you.
To avoid this, all you need to do is change the name of the folder where the game is installed before installing the desired new version.
Here's a step by step guide:
1) locate an