The Corruption Within

The Corruption Within Walkthrough and Achievement Guide

This guide will be teaching you how to complete the game and obtain all The Corruption Within achievements.


  • All achievements are story-related.
  • Always make sure to exhaust all dialogue options.
  • Choices don’t matter.


Part 1

  • Knock on the door.
  • Go to the right twice, then up.
  • Knock on the door again.
  • Interact with the green sofa three times.

Part 2

  • Go to the right four times.
  • Take the green hose hidden in the bottom right corner.
  • Now, go to the left three times and talk to the butler.
  • Go to the left four times and try to take the bottle of whiskey.
  • Talk to Francesca, the kitchen maid.
  • Pick up the bottle of whiskey.

Part 3

  • Go to the right and talk to Molly.
  • Head back to the butler and interact with the staircase multiple times.
  • Talk to the butler, then go up twice.
  • Head to the right-most door and interact with the painting twice.
  • Enter the room ahead and interact with the chest of drawers twice.
  • Go downstairs, then to the left.

Part 4

  • Outside again, go to the right and interact with the shed door twice to find a spanner.
  • Go to the right, up, then to the right three times.
  • Examine the purple plant in front of the abandoned house to find a screwdriver.
  • Go to the right, open your inventory (MMB) and use the spanner on the mortar.

Part 5

  • Go to the left three times, then down.
  • Back in the mansion, enter the first floor.
  • Go to the right twice, then up.
  • Find a book on the desk on the left.
  • Try to access the second floor again.

Part 6

  • Now, go to the left twice and up once. Talk to Charlotte.
  • Enter the next room on the left.
  • Head to the right four times and enter the room ahead. Talk to Charles.
  • Leave and go to the right. Examine the console table twice to find some matches.
  • Go up and talk to Penelope.

Part 7

  • Go downstairs and talk to Isabelle in the music room.
  • Now, go to the right and talk to the servant.
  • Backtrack to the old barn. Talk to Gary.
  • Enter the mansion again and head to the left three times, then go up.
  • Pick up the magnifying glass.

Part 8

  • Leave and go to the second floor.
  • Enter the second room on the left and examine the footlocker six times.
  • Use the magnifying glass on the painting.
  • Leave and enter again. Talk to Charlotte.
  • Outside the room, interact with the green console table three times.
  • Click on the buttons in this order: 4-3-1-5-2-1-5-3

Part 9

  • At the lake, use the rune book on the yellow pillar. Code: 11-13-14-22
  • Back in the mansion, head to the second floor, then enter the right-most room.
  • Talk to Giles, then head outside and backtrack to the hanging body.
  • Go up and use the iron key on the rock face.
  • Enter the mansion, then go to the right twice and pick up the oil lamp.
  • Back in the cave behind the hanging body, go up.
  • Interact with the bones on the left three times to find a locket.

Part 10

  • Enter the mansion again. Talk to everyone downstairs.
  • Head to the second floor and interact with the vase on the very right.
  • Go to the right and use the nail file on the pulpit.
  • Inspect the pulpit. Code: 13-21-24-23-11-12-22-14
  • Talk to Gary in the dining room downstairs.
  • Head back to the second floor, then try to go to the left.

Part 11

  • Now, go to the first floor and enter the right-most room.
  • Use the screwdriver on the musical box.
  • Open your inventory and use the bedroom key on the door in front of you.
  • Head outside and go to the lake/shallow waters location.
  • Use the wire and the hose on the wagon.
  • Interact with the shallow waters and take the wallet on the left.

Part 12

  • Back in the mansion, talk to everyone downstairs.
  • Head to the second floor and talk to Penelope.
  • Backtrack to the previous room and inspect the mirror twice.
  • Talk to Isabelle in the music room downstairs.
  • Go to the second floor, then to the left.
  • Enter the room in front of you.
  • Interact with the dresser to open a secret room.
  • Go to the right and interact with the chest twice.

Part 13

  • Leave and enter the bedroom on the very right. Talk to Giles.
  • Now, enter the room on the very left.
  • Head to the kitchen and talk to Francesca.
  • Back on the second floor, enter the left-most room again.
  • Talk to the couple.

Part 14

  • At the left-most lake location, inspect the prominent rock three times.
  • Now, find a book in the chest (secret room) on the second floor.
  • Talk to Isabelle downstairs.
  • Go to the right twice, then down.

Part 15

  • Interact with the left cage multiple times.
  • Take the whip and use it on the left cage.
  • Investigate the iron maiden, then use the spanner on it.


And that's all for this The Corruption Within guide. Do you have any suggestions or tips to improve this guide for The Corruption Within? If yes, then make sure to leave a comment down below. This guide has been made possible by Hanni. You can check him out by simply clicking his name.

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