Do I need an internet connection to use Double Header USA?

No, an internet connection is not required to use Double Header USA. The game is designed to be played offline, allowing you to enjoy it anytime, anywhere. Whether you're traveling, commuting, or simply want to pass the time in an internet-free environment, you can still access and play Double Header USA without any network access. However, please note that some features, such as syncing progress across devices and accessing online leaderboards, may require an internet connection. But the core gameplay and functionality can be fully enjoyed offline. So, whether you're connected or not, Double Header USA offers an immersive and entertaining experience.