Create a stand alone app using Ready + Unity3D
In Ready, save your project & export it to Unity.
Inside your Ready project: Open Settings (A) to Save, and then Export (B) your project to the empty folder.
Download Unity (FREE)
Download latest stable version of Unity - It's free :)
Log in and Open your exported project
Open Unity & Signup or Log In your account. Then click the Open button (E) on project selection screen - and the entire Choose folder (F) in which you exported your Ready project - then click Open
Load the ReadyPackage
In your Project section (to the right side of your Scene) double click on the ReadyPackage (G) then click Import (H) on the pop over.
Load the PlayerScene
Also In the Project section (to the right side of your Scene) inside your Scene folder open or double clik on PlayerScene (L)
Click Recreate Project
In top menu select Ready drop down then click Recreate Project (M)
Now you can play and build your exported project
Open Export Build panel
To export your app go to the File drop down (on the top right of your screen) and select Build Settings (N) - then click Add Open Scene button to add PlayerScene to the build
Export your project
Click Build and select destination.
When you will build a project for Mac, make sure you select Mac OS X, x86_64
Step 9 Extra
Give your project an app Icon
Click “Player Settings…” and change name, icon, splash etc.