Doom 3 Walkthrough - Caverns 1 Walkthrough: Doom 3 Level 25

Grab the pick ups in front of the lift the take the stairs up watching out for trites behind you. There’s an imp at the top, follow the walkway round and kill two wraiths then go through two doors and kill the imp that spawns.

Grab the pick ups and use the medical station, then go through the next door. There’s a BFG cell under the desk; kill the two wraiths that spawn in and take the next door.

Kill the chaingun commando and then the four wraiths that spawn in, head through the door to your left and straight through the next one.

An archvile will spawn in as you advance, then an imp and maggot to your right. Grab the medkit off the desk to your left and go down the stairs.

Turn right up the stairs to kill two chaingun commandos on your right then loop back round and go through the next door. Kill the trites and the imp and use the medical station to your left.

Take the door on the left and go to the top right corner, hit the control panel and lower the ladder then climb it. Kill two cacodemons and then jump across to the booth and hit the control panel inside to unlock the cargo lift controls.

Head through the door at the back, grab the BFG and other ammo on the right then go back the way you came and call the service lift.

Kill the hellknight and imps that spawn in while you wait then take the lift down into the depths.

Kill the chaingun commando at the bottom and make your way across the broken metal. An archvile will spawn in above you and then a couple of imps ahead and two cacodemons. Grab the medkit on the right and then hit the control panel on the left to lower the service ladder. Climb it and kill the wraith at the top.

Check behind the box on your left for ammo then go through the door and kill the wraith and imp on your left. Use the medical station on your left and get onto the lift hitting the control panel to take it up. Kill the two imps that spawn in and then the trite and go through the right door. Kill two cacodemons, go round to the right, climb the ladder and go through the door at the top.

There’s an imp behind the door and some ammo to the left, take the ladder on the right down. Climb down two more ladders and then jump from platform to platform to make your down to the walkway where there’s another ladder to descend.

When you reach the bottom grab the pick ups on the right then jump over the pipe to the left. Grab the pick ups and crouch and crawl to your right.

Talk to scientist J. Katayama and grab the keycard on the desk next to him. Jump back over the pipe and use the control panel to extend the ladder then climb all the way up and climb the next three ladders as well.

Kill five cacodemons through the door at the top and take the ladder down then enter the door.