Avoid machine specific configurations such as video quality.
If you are adding Steam Auto-Cloud to a game which is already released and you have enabled developer-only mode during the Initial Setup then you must complete some additional steps to test the functionality.
Don't forget to disable developers-only mode and publish the changes when you're done testing.
This is most commonly used to share saved games between a demo and a full game. Steam provides two different methods of utilizing the Steam Cloud, read up on how the two methods differ, and determine which would be the best for your application. The Cloud API provides a series of functions which allows you to directly integrate the Steam Cloud into your game.
The Cloud API isolates individual Steam users files from each other and provides a greater level of control over the Steam Cloud.
The Steam Client does the work of ensuring that the files are kept synchronized across all computers the user may be accessing.
Users can globally disable Cloud synchronization in the Steam Settings under Cloud by unchecking "Enable Steam Cloud synchronization for applications which support it."Users can also disable the Cloud synchronization on a per game basis in each games properties.This has no effect on unreleased games since no one owns the game yet, they won't be able to see or access any cloud storage for the specific app ID.You are able to share Cloud storage space between two app IDs by filling out the field.It's recommended to set the values to reasonable amounts for your game title.NOTE: Don't forget to click Save at the bottom of the page, and Publish your updated settings.Root Paths describe groups of files which will be persisted to the Steam Cloud.