Blueprint is Unreal Engine's visual scripting language, and for a lot of gameplay work it is all you need. The posts collected here are the ones where something gets built end to end without opening the C++ project.
There is a save system you can put together in about ten minutes, procedural levels streamed in at runtime with level instances, and a walkthrough of the Gameplay Effect Components that stays in Blueprint the whole way. Epic's Blueprint documentation is the reference for the language itself. These are the worked examples.
