Access the keys and exit Doom map E3M7, Gate to Limbo (original) (raw)

How to get to the keys and the exit in Doom 1 level E3M7, Limbo / Gate to Limbo:

(Note: To watch a YouTube video of the walkthrough below, click here.)

The game's Automap screen can be a useful reference tool while playing. In the instructions below, "north" refers to a direction toward the top edge of the map screen, "east" would be the right side of the screen, and so on. To view a complete map of this level, click here.

You begin the level at the south end of a tunnel that leads north to a very large, circular room. This will be the starting point for basic instructions on where to pick up all three keys (blue, then red, then yellow), and then get to the exit.

BLUE KEY

In the large circular room, there are 4 wide doorways: One each to the north, south, east and west. You just entered the circular room from the south doorway. Turn left and leave this room through its west-side door. Simply follow the left-hand wall around a U-turn at the corner to your left, and continue following the left-hand wall southeast, then south, until you come to the blue skull key in the corner. (It's located in the southeast corner of this general quadrant of the map.) Note that there are 2 very small, short walkways that lead across a small square pool of red acid around the blue key. Both walkways will sink into the acid when you step on either one of them. Run across the walkways (or the acid) to avoid being badly burned. Now retrace your steps to back to the large circular room.

RED KEY

When you're back in the large circular room, leave through its east-side doorway. You'll enter an area that has 2 blue-keyed doors. Turn left and go through the north-side door. In the room ahead you'll see a low, wide stream of red acid crossing your path. At either end of the acid stream (to your left and right) is a small stairway behind a narrow partition of brick. Jump down into the acid and run up either stairway to get up to the north side of the stream. Continue north and you'll find a hole in the floor, at the base of the room's north wall. Drop through the hole, and you'll land in a small stream of red acid. Quickly Run north to the chamber ahead. You'll find radiation suits here; grab one. There are paths leading east and west out of this chamber; Turn left and go out through the west-side door. Go past the doorway on your left, and continue a few paces west, hugging the right-hand wall, until you come to a doorway to another small chamber with some radiation suits. Step into this chamber, and continue west, out of the chamber's west-side door. Stick to the left-hand wall as you continue west, then north. Go through the first doorway on your left... and turn to your left. When you look west down a short passage, you should see a teleporter pad on the floor in the acid a few paces ahead, and another opening on your left. Turn left to go south through that opening, and follow the short passage west, until you come to a small chamber on your left. You'll find the red key here, and another radiation suit. Grab the key, and use it to open the red-keyed wall panel here on the south wall of this chamber. It opens, revealing a switch. Activate it. Walk north out of this chamber, past the passage on your right, to another passage a couple of steps further to the north. Walk east down this passage to the teleporter pad. (You're now seeing it from the opposite side from where you saw it before.) Step on, and you'll be teleported to a small chamber that's located just to the northwest of where the blue key was.

YELLOW KEY

Once you have the blue and red keys, you want to get to the teleporter booth in the far southwest corner of the map: After you pick up the red key and teleport back to the small chamber near the blue key, step out of the chamber and turn right. Go a few paces south, then west. Continue west, following the left-hand wall, until you come to a pool of red acid. Run into the acid and continue west and north, to a wide, round brick column ahead. Go north around to the back side of the column, and look for a door there. Step on to the teleporter that's inside the column, and you'll be sent to a small narrow chamber in the northwest quadrant of the map. Walk to the end of this chamber and look for a switch on your right, and Activate it. Walk back to the other end of the chamber and step back on the teleporter. You'll appear back inside the brick column where you were a moment ago. Step out, and Run south and east to get back to a solid floor. Now you'll want to get back to the large circular room near where you started the level: When you step out of the red acid, turn left, and follow the left-hand wall north, around to a wide opening in the wall that leads north. Step through that opening and immediately turn right. The large circular room is ahead to the east. From within the large circular room, Run out through its north-side doorway to enter into another large acid-floored room. Here you'll see two more wide brick columns: One to the east, and a slightly more distant one to the northwest. Run to the back side of the northwest column, and step through the door to the teleporter inside. You'll appear on a raised platform in a large room at the northwest corner of the map. As you appear here, look on the wall on your left for a switch, and Activate it. Then step back on the teleport pad next to you. You'll appear back in the brick column where you were a moment ago. Step out, and quickly Run a few paces south, then east, to the other column on the east side of the room. (Note that there is another radiation suit in a small cul-de-sac just to the south of this column, if you need it.) Step through the door of this column to the teleporter there. You'll appear on a different platform in that room in the northwest corner of the map. The yellow key will be on the platform with you, a few paces ahead and to the right. Grab it and step back on the teleport pad. You'll appear back in the brick column where you were a moment ago. Step out, and quickly Run south, back to the large circular room near where you began this level.

THE EXIT

Once you have all three keys, and have Activated all the switches mentioned above, go to the wide brick column at the center of the large circular room near where you began the level. Step through the door of this column onto the teleport pad inside. You'll appear in a rectangular room on the west side of the map. Ahead, off to the left, is a yellow-keyed door across a small bridge. Open the door to reveal a small chamber. Look inside to the right for a switch on the wall, and Activate it. Now go step back onto the teleporter, and you'll reappear back in the brick column where you were a moment ago. Step out of the column, back into the large circular room. Turn left and Run west across the acid to leave this room through its west-side door. As you step into the doorway, follow the right-hand wall in a west/north/east U-turn around the corner to your right. Walk a few paces east to the end of the hallway, and you'll see an acid-floored chamber on your left. Step north into the chamber, and go around to the back of the wide brick pillar you'll see there. Go through the door in the column, to the teleporter pad inside it. You'll appear in a small room on the west side of the map. Ahead of you is a yellow-keyed door. Go through, and follow the path north, across a bridge to the exit chamber. Open it, and simply step on the exit teleporter inside to finish the level.

To read about and/or download a PC compatible demo of this level, showing how to access all keys and get to the exit, click here.

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