The source code for my game, Dragon's Defense: Wrath of the Villagers! You can find my game at: https://edgecopecorp.itch.io/dragons-defense-wrath-of-the-villagers?password=dragons
Every folder besides the Design folder is code for my game. However, blueprints are not included in this section. You can't really show that off as easy as C++ files.
This is where I create diagrams and plan out all the systems of each class or whatever system that might exist in the game. However, some design documents aren't updated fully, but they get the general idea of the architecture across.
The King AI, the biggest system I have ever created in my programming career, is something to check out! You can find it in the Game folder.
You can find the general design of The King AI under the Design folder.