First off, you need to assess your game idea, its scope, and customer preferences. Once done with the assessment follow the steps mentioned below:
Design the app
Create a prototype
Consider UI/UX design
Choose the right Andriod game development engine
Develop Android app
Consider proper app testing
Deploy the app on the app store.
These are the steps for Andriod game development, however, those from a non-technical background, may not understand and execute these processes properly. For this to be possible, you can contact an Android game development studio to get end-to-end assistance for your project development.