In Lies of P: Overture DLC, you will find a quest where you must decide if you want to help or not help the Brain in a Vat. While playing through Chapter 3, you will meet a Crusher Puppet who guides you through different parts of the level. After following the path, you will finally reach the Brain in a Vat, where you have to make your choice. Your decision will change what reward you get and what happens to the Brain.
Help Brain in a Vat or Refuse Help
Start by playing through the Ancient Ruins Excavation Site in Overture Chapter 3 as usual. Eventually, you will come to a wooden bridge that leads downward. After crossing it, take a left into a nearby cave. Once inside, you will hear a robotic voice; it’s a Crusher Puppet. Look around the cave to find it and talk to it to begin the quest.
Keep going through the level until you reach the Ergo Mining Site Stargazer. Here, you will need to use a moving platform to keep progressing. After riding it, head down the path on the right, and you will hear the Crusher Puppet calling out to you again. Walk past the crates and follow the tracks going upward; you will find the puppet waiting. Talk to it again, and then take the exit beside it to rejoin the main path.
Next, after you drop down from a cave later in the level, turn right and go across a short wooden bridge. This will lead you to a second, much longer wooden bridge. Run across that one to reach another cave. As soon as you enter, you will hear the Crusher Puppet calling from your left. Talk to it again and make sure to listen to everything it has to say. This continues the quest.
Now, progress until you reach the Pistris Harbor Stargazer, still in Chapter 3. From the Stargazer, go down to the large platform below. Look for a path made out of wooden planks, follow it. Here you will find a Brain in a Vat, who will ask for your help. When the choice pops up, select “Help him” to complete the quest. As a reward, you will receive the Nightmare Record. If you choose to refuse Alexander, you won’t get any kind of reward. He will stay alive in the vat for a while, but eventually, he will die anyway, likely because the gas keeping him going runs out.
