Try Games before downloading.
You should use this extension if you want upload your game on google play instant.
after add the extension you must read file "ReadMe" exist in notes included with this extension.
This extension for android only.
The size of the game less than 15 Mb for accept in google play instant
Test in IDE 126.96.36.1991 and Runtime 188.8.131.528
"The documentation by google
"Try My Game on google play instant here 'First make sure that the google play instant is activated'
if you have any questions or problems please contact me