Core

• Engine Components
• The Unreal Engine Game Framework: From int main() to BeginPlay

Classes and types

Object

• ClassPrivate Is the UClass of the object instance. The thing you get back when you call GetClass.
• If a object was loaded from “a loader” (FAsyncPackage or LoadPackageInternal) it will have the RF_WasLoaded flag. This can be very useful to use on actors to know if they got loaded from disk or spawned at runtime.

Actors

• Actor lifecycle
• Extra details in Actor.h file

Game Framework Objects

Detailed list here

Other types

• FName and GameplayTag in depth - Baffled’s blog post on the subject

Miscs

Seamless and hard travel

• Wizard Cell Persistent Data Compendium