Minimizing the application footprint

One of the keys to a successful game is the size of the game itself. Many users will quickly uninstall any application that appears to be unnecessarily large. Also, all of the mobile app stores have limits to how your game will be supplied to users based on the size of the application itself. Becoming familiar with the options you have for minimizing the size of your game is the key to control how your game will be distributed.

The first thing to note when working to minimize the footprint is how Unity handles assets as it builds the game. Only assets that are used somewhere in one of the scenes for the build are actually included in the game. If it is not in the scene itself or referenced by an asset that is in the scene, it will not be included. This means you could have test versions of assets, or incomplete versions; as long as they are not referenced, they will not affect the final build size of your game.

Unity also allows you to keep your assets...