iOS Debugging and Optimization - Learning Unreal Engine iOS Game Development - page 191

Minimizing the game size
When it comes to packaging a game with an engine like Unreal Engine, there is not much
that you can do to reduce the final installer file size, as there are so many files, headers, and
things related to the engine itself that need to be shipped along with the game. Still, here
are some hints that could help in reducing the final game size:
• Using less textures and game contents will guarantee that you have a smaller con-
tent folder within the IPA.
• Any unused content must have no reference. For example, if there is a testing level
and it has testing content, then it needs to be removed from any logic; because any
content referenced in the game will get cooked into the IPA.
• Switching the project to C++ is a great way to reduce the size a little bit, because
you'll be able to disable some of the plugins such as Slate . Normally, the project
cannot make any assumptions about which plugins and libraries you are using.
• Zipping the final IPA file before submitting to the App Store will shrink its size a
little bit.
• When you make your custom Loading screen and game icon, save them as .png
files and try to make them as simple as possible and as few as possible.