This is a paid asset, but now you can download The Dungeon Game Kit Free.
Detail this asset from Unity Store: Original Link
The Dungeon Game Kit v4.47 (Latest version)
This is Dungeon Game Kit.
Asset Features :
C# source code included.
-Works on all platforms (PC, Mobile)
-Fully operational mobile and keyboard controls
-Top down controller
-AI(simple, but easy to edit)
-Level logic and more
-Unity 5+ support