When creating an incremental achievement, you must define the total number ofsteps required to unlock it (this must be a number between 2 and 10,000). Asthe user makes progress towards unlocking the achievement, you shouldreport the number of additional steps the user has made to the Google Play games services.Once the total number of steps reaches the unlock value, the achievement isunlocked (even if it was hidden).There's no need for you to store the user's cumulative progress.