E1M7: Biosphere (No End In Sight)

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No End In Sight maps
1994 Ways To Die

The Depths of Doom

M1 M2 M3 M4 M5 M6 M7 M8 M9


M1 M2 M3 M4 M5 M6 M7 M8 M9

Blood Stained Earth

M1 M2 M3 M4 M5 M6 M7 M8 M9 M0

This level occupies the map slot E1M7. For other maps which occupy this slot, see Category:E1M7.
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E1M7: Biosphere is the seventh map of the 1994 Ways To Die episode of No End In Sight. It was designed by Xaser Acheron.


Map of Biosphere
Letters in italics refer to marked spots on the map. Sector numbers in boldface are secrets which count toward the end-of-level tally.


Other points of interest[edit]


  1. After getting the blue key, go back to the starting point and open the east door, then take the upper blue door. Go south towards the blur artifact, and you will hear a lift lower. Go back to the starting point as soon as possible and step onto the gray ledge at the southwest, which is the lift that will take you up. Jump across to the outside to reach a chainsaw. (sector 13)
  2. Along the long hallway with the stairs leading down, go on the flat ground above the stairs all the way to the north. Follow this path until you reach a small set of steps going down to a room containing three switches. If you have pressed the switch in Secret #3, there will also be a red circle in the center of the room, functioning as a teleporter. The switches grant access to three compartments in the long hallway, but not for long, so you will need the teleporter. The southeast switch allows you to access a compartment with a box of shotgun shells, the southwest one allows access to one with a backpack, and the northern switch allows access to the furthest one, the one with the soul sphere. This is the only one that counts as a secret, so flip the switch, enter the teleporter, and then enter the secret before it rises. (sector 50)
  3. At the zigzag bridge in the northeastern part of the map, drop to the left and go through a gray wall to find a stimpack, a medikit, and a switch. The switch opens up a teleporter on the other side. (sector 128)
  4. After getting the blue key, go back to the starting point and open the east door, then take the upper blue door. East along the hallway, there is a lever switch on the north wall. Flip it, then go back and take the lower blue door. If you have not already done so, step onto the blue pad to raise the steps, then at the top of the steps, jump southeast through the open terminal. This blinking room holds four rockets. (sector 146)
  5. On the way to the blue key, you will lower a wall which will allow you to access a nukage channel going north which will eventually wrap around to where the blue key is. Instead of going north along this channel, go south instead. When you approach the dead end the walls will open up back to the starting point. Keep going across the nukage and you will eventually get a computer area map. (sector 224)
  6. At the southwest end of the map, climb the steps at the northeast end and go northwest through the green wall. There are five rockets at the top of the lift here. (sector 613)


Demo files[edit]

Areas / screenshots[edit]


Routes and tricks[edit]

Current records[edit]

The records for the map at the Doomed Speed Demos Archive are:

Style Time Player Date File Notes
UV speed
NM speed
UV max
UV -fast
UV -respawn
UV Tyson
UV pacifist

Miscellaneous demos[edit]

Style Time Player Date File Notes


Map data[edit]

Things 626
Vertices 2960*
Linedefs 3188
Sidedefs 4792
Sectors 635
* The vertex count without the effect of node building is 2396.


This level contains the following numbers of things per skill level:

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]