There are many different competition format to choose from. To narrow it down, could you provide a bit more detail on what it is you have in mind?
In particular -
What is your primary objective for the event? It makes a big difference.
- Generate awareness? Attract new customers? Provide an activity for existing customers? Increase revenue?
Where do you plan on holding the event? How much capacity do you have?
What game(s) do you plan on using? What's most popular near you, or among the crowd you interact with most?
Events Coordinator