How do I restore a game I just deleted yester

Go to the App Store and look for the game, which if there, will be shown with a cloud icon next to it. Tap the cloud and the game will reinstall.

You either download it from the AppStore or you restore your phone from a backup from before you deleted it.

If the game didn’t keep track of your progress by saving your user ID and progress to their servers, any in game progress is gone.