When making a game, it is always important to write a Game Design Document or GDD for short. Begin writing a concept paper. Select a genre, what the game is gonna be about. Target audience the game is for. Description of the game, and the compelling features of the game. Write down the market information; and the cost and time it takes to develop in the process.
Tip: Research how to create a game design document while making a game.
Tip: Research how to create a game design document while making a game.