In this new NEFX scenario shell for Marathon Aleph One, travel around a corn maze to get to the exit without a map. If you try to use a map, you'll die, because that's cheating. So really use your navigational skills, prowess, memory, etc. You'll become a better person if you persevere through this.
Today I added one new map for Marathon: Corn Maze, "The Weight of Cumulative Collective Memory". This can be downloaded individually or with the scenario itself at the provided link.