In this NEFX shell based on Pathways Into Darkness, you've probed too deeply into matters unknown and found yourself in the forbidden zone, at the mercy of a once-dormant deity ordering your retrieval of diamonds to escape.
I added a separate Pathsifter map called "The Abrasion at the Horizon Boundary". You can get this map and others along with the scenario folder itself at the provided link.
NEFX is proud to present the first ever custom-made map for Pathways Into Darkness...Or at least Marathon: Pathways Into Darkness. This is an extermination level, so return to your starting platform to exit after killing everything.
This level is highly action-oriented and full of edifying trials and variety like never before experienced in the game.