When Quake was in development, the developers put in id a self-imposed limit of 1.4MB per .bsp file, meaning that no map could exceed the size of a single floppy disk file. To get the E2M6, the Dismal Oubliette, down to this size, its designer, John Romero, had to remove the area that was originally its entrance (although later Share it online).
As an earthquake expert Starship I noticed, recently released earthquake remaster This restores the lost entry to its proper place. Now, when you reach the Dismal Oubliette, you’re at the bottom of a damp, winding cavern and have to work your way up, past hellknights and other classic Quake tremors, to reach what was previously the beginning of the level.
“Yes, there was a more interesting start to that area than the earthquake,” Romero wrote back on Quake’s 5th birthdayBut I had to amputate the man and iron the wound to his current state, which is the starting point for e2m6. I remember spending many hours trying to get it right, to make the player feel the horrific cavernous hole out of the real horror of the Oubliette. He added a little game time and I Sorry it had to go, but we set the .BSP file size to 1.4MB and we had to be strict about it.”