This is a map I made when we were learning level design techniques with UDK. This was my first real experience with making a world in 3D. It was slightly based off the Amnesia games, although my world is mostly built outside. The level is completely playable within UDK, with enemies that act like super-fast zombies that kill you when they touch you.

 All the icons that you see in the level have different functionalities with the editor.