The second and very important section of settings you will probably need to make sure of every time you are making a new game build of the game, is the Maps & Modes section, which is accessible directly through Project Settings under the Edit menu:

Usually any game made with Unreal Engine, or any similar technology, has lots of maps and levels but, when you build the game, how does the engine know which one should be launched first, or which one is the most important? Here within this section you have the chance to set these settings, and define what map needs to be launched first; then, using the game code, you can use this map to start launching all the other maps, but you need to pass only the first map to the engine during the packaging time. Here in the Maps & Modes settings there is a set of options that you might need to change or might not need to check at all however, in general, the Game Default Map is a necessary field you must check when you are...