Choose a basic theme or central idea that will drive the game’s events
Take inspiration from other games that you enjoy
Work out the mechanics of the gameplay
How will players win?
Write out a rule sheet
Write a short description of your game. In 1-2 sentences, summarize the game's basic premise and primary themes. Be specific about what it is players are trying to achieve.
Choose a gaming style. How many pieces will you need? Will you incorporate cards?
What is the age range for your game?
Make artwork and graphics for your game
Design a game box and logo
Produce a prototype of your game and begin play-testing in phases to see where you can make improvements.