You need click for shot ant kill aliens enemies. It’s endless type game.
More about project:
Project have share function, you can put short link to share message for increase users in game.
To increase audience retention we use local notifications after 1,6 and 24 hours and after 1 week.
For monetisation project has AdMob framework, you can easy place your ad id’s.
After game we called rate us function, also we have rate us button in main menu.
Game based on SpriteKit engine, and write on Swift. All code in game nice commented. Project have good program architecture.