3. The Duke Cave | Campaign Duke Nukem Forever Guide

Last update: 11 May 2016

After a long briefing inside your command centre, exit through the door behind the throne/elevator. The real action will begin, as the aliens have overrun your "cave".

This stage is perfect for unlocking a few achievements. You will start off by having the chance of killing an alien by throwing a statuette at him. Kill 10 aliens this way to unlock Tosser... in the Literal Sense. The first room you will arrive to is Duke's gym. This place is a real Ego mine.

In order to receive all Ego boosts here, you have to: throw the ball into the basket, curl a dumbbell, lift the barbell (firstly putting on the four weights found in the area or you won't receive the boost), hit the punching bag and punchball and beat the highscore at pinball (over 280 thousand).

You can also unlock Balls of Steel by scoring over 1.000.000 points at pinball.

Once you're done raising your Ego, pull out the vent and go inside. Soon after you get out of it, all the light in the building will go out. In accordance with the hint, turn on Duke Vision. There will be lots of aliens in the area and you don't yet have any weapon, but don't worry - you will find lots of items that can be thrown at them. You can also always leave it to your fists, easily defeating all blindly walking enemies.

On your way you will also find beer cans lying on the floor. Pick up one, but don't use it yet. Inside one of the rooms you will find another vent, follow it to the generator. Beside it there are two cells which you need to insert.

Do it and the door leading to the third cell will open. It turns out to be inside a locker room, behind glass. Luckily you have a remote control car at your disposal. Use it to pull the cell to the hole by the door.

Return to the main room and place the last cell in the generator. Turn it on and take the steroids that will come out.

More aliens will soon enter the room. You will have a chance to unlock three achievements at once:

Flagon of Chuckles (drinking a beer), Juiced (taking steroids) and Substance Abuser (both at the same time). Take the steroids, drink the beer and smash some alien heads. It will be also the first step towards yet another achievement - Duke Angry, Duke Smash! (kill 15 aliens while on steroids). You might kill 6-7 aliens that way, finish the others in a conventional way. Eventually two Pigcops will enter the room. Exit following the same way they came and at the end of the corridor you will obtain Duke's unique weapon - the gold Colt M1911.

If you want to unlock Gunslinger, you will have to keep it to the very end of the game which means you will only be able to change one weapon! But don't worry, the pistol is surprisingly effective and headshots are absolutely murderous. Inside the round corridor where you will find yourself you will have the chance to unlock Dead Useful by killing an enemy using a gas cylinder.

Just shoot one of them when an enemy is standing nearby. You can also pick up the cylinders and exploding barrels and throw them at enemies. Having the Colt, start doing headshots and after 30 you will unlock On the Noggin'. Finish the level by taking over the giant gun that the aliens were trying to destroy.