On the other hand, UE4 has also been somewhat stripped of “default” content in order to emphasize the user-generated content located on Epic’s new marketplace. This tutorial series is designed to bring you up to speed on UE4 level-design by showing you how blueprints work and how you can create your very own blueprint building-blocks. Understanding Blueprints The Blueprint system is a visual scripting language central to all game interaction in UE4. Blueprints come in two flavors: