Define the game idea
Identify the target audience
Choose the game genre
Set the platform
Plan the core gameplay
Create a game design document
Select a game engine
Choose the programming language
Design the game art style
Build the game prototype
Develop core mechanics
Add user interface elements
Create game assets
Implement sound and music
Add levels and progression
Test gameplay regularly
Fix bugs and performance issues
Optimize for devices
Prepare monetization strategy
Publish to app stores
Update and maintain the game