The author says in his readme, The map is a conversion of Agony from Nintendo 64's Quake 2. I immediately assume the graphics would not be pretty and lighting would be gaudy colored, to show off what was once the great Quake 2 engine's legacy. Minimal textures, minimal geometry, and the BFG completely overpowers the level. Bots play OK if you limit the match to 1 vs. 1, any more and you'll have hordes swarming around the BFG hallway (an item_botroam may have solve this).
The name says it all. Download if you're an extremely hard core Quake 2 fan.
Reviewed by Mr. Lake