The intro before reaching the cube was a fun addition.
I got a bit disoriented by moving to much with the free look, so I tried to keep it centered and only use WASD to move instead. The layout and looks of the dungeon was great, and the maze like structure of it made it an interesting task to ascend. However the floors were a bit to similar and the combat was a bit hard to master because of the long reload time and movement not queuing up. Over all it is a solid and enjoyable submission!