Rushing Cube

Windows

Unzip the game file by going to your local file manager and clicking the option to extract all on Windows. 

Mac

 If you are on mac,  Download the mac version, when you do open the game. If you cannot open it, navigate to Privacy and Security, Scroll down to the Security Section and there should be an option to accept Rushing Cube and if not set the option from App Store to App Store and Identified Developers.