"sewer tunnel explorations", in the session results, seems to get incremented after any fight that is seen taking place in the Maze of sewer tunnels. However, exploration from fights seems to be hardcoded to only happen against the monsters native to the zone (zombie goldfish, sewer gator, C. H. U. M. and C. H. U. M. chieftain).
I just tested this by starting my exploration with a sausage goblin, and only got "at last" at 101 exploration.
I just tested this by starting my exploration with a sausage goblin, and only got "at last" at 101 exploration.
