You could download the Abi: A Robot's Tale app by navigating to the Google Play Store
Once on the store, click on the search bar at the top of the screen
Next, type in 'Abi: A Robot's Tale' and select the first option
Click the "Download" button and wait for the app to start installing on your mobile device. Depending on your download speed, this should only take a few minutes
How to remove Abi: A Robot's Tale from your phone?
If you no longer want this application on your mobile device and want to delete the Abi: A Robot's Tale app, then you'll need to navigate to your Applications Manager
Once there, you'll be able to scroll through your apps until you reach the Abi: A Robot's Tale app
Click on the application and hit the 'Uninstall' button
Wait for the app to uninstall from your device. It will take all the app's data with it