The Corruption WithinThe Corruption Within

Game Details:  Horror, 2021

Links:  Moby Games, Steam, Adventure Gamers

Walkthrough Updated:  8/10/2021

Suggested Listening:  Wild Hearts Meet (Ash 25)

The Corruption Within is a first-person retro horror adventure game. You play as Samuel Taylor, a man on a camping trip with your family. After your wife and children go missing, you desperately head to a creepy old mansion in the hopes of getting some help. There are 10 Steam Achievements, all documented in the walkthrough below.

Meet the Family

Forest

Knock on the door, but you will be sent away. After you receive the invitation, head right. Knock on the shed door, and you will end up taking a spanner. Continue right and forward, then knock on the door to get inside.

Mansion

You will meet Lady Charlotte, who will then leave you alone in the mansion Within. Look at the green sofa, then search it to find a threepenny (coin). Go right and talk to Giles, then go right again to meet Isabelle. Continue right twice more. Look at the statues, then pick up the garden hose. Next head left 7 times to reach the kitchen. Try to pick up the bottle of whisky. Talk to Francesca, then take the bottle.

Now go right and talk to Molly. From here, return left, forward and right 3 times. Examine the stairs, then try to go up but you will be blocked by Giles. Talk to him and offer him the whisky, then go forward twice to meet Isabelle again - she is blocking the way further upstairs. Go right twice, and Francesca will ask you to meet her in the lounge. Go right once more, then examine the painting on the wall and move it. Now enter this room. Search the chest of drawers to get a nail file. Return back, left 3 times, back and then left into the lounge.

Forest

Francesca will take you back out to the hanging body. From here, go right twice, forward, and right 3 times. Search the purple plant to find a screwdriver. Continue right to find some stables. Use your spanner on the crumbling mortar to get a steel wire. Return into the mansion by going left 3 times, back, then through the door.

Mansion

Molly will take you to the scullery and give you a meal. Head left, forward and right 3 times, then go upstairs. Continue right twice, then enter this room. Search the left desk to find a poetry book. Back out, then go left twice and up the stairs - give Isabelle the poetry book and she will let you pass Upstairs.

Explore the Mansion

Mansion

Go left twice and forward to enter Lady Charlotte's room. After talking to her about everything, go back, left and into the next room to briefly meet Lord Alfred and Lady Edith - you will automatically leave again. From here, go right 4 times, then enter the room here to meet Charles. Talk to him about everything, then back out again. Go right and search the console table here to find a box of matches. Enter this room and talk to Penelope. Back out and go right to hear Giles snoring in the next room.

Return left 3 times and back twice, then go right to the music room. Talk to Isabelle, then go right and talk to Molly. Leave the mansion by going left twice, then back.

Forest

Go back and right 3 times to find the stables, where you can talk to Gary. Now return left 3 times, back, then through the door.

Mansion

Go left 3 times, then forward into the study You're Not Supposed To Be Here. Take the magnifying glass, then read the documents in the right filing cabinet. Head back, right 3 times, then forward twice to go upstairs. Continue left twice and forward into Lady Charlotte's room again. Search the footlocker until you realize Lady Charlotte's link to the Dennisons. Look at the painting, then use the magnifying glass on it to see the letters FMLTRLTM and a left hand facing down. Back out and enter the room again, then talk to Lady Charlotte.

Go back out once more, then examine the green console until you see a series of buttons. If you picture your left hand facing down, the fingers are in this order:

  1. Little finger (L)
  2. Ring finger (R)
  3. Middle finger (M)
  4. Forefinger (F)
  5. Thumb (T)

Convert the letter sequence to numbers in this order and you will get the code 43152153. If you number the buttons 1-5 from left to right, enter this code. You will find a book of runes, and take note of a page of Anglo-Saxon runes and their modern day equivalents It's All In The Runes.

From here, go right twice and back 3 times.

Forest

Head to the lake by going back. Use your rune book on the yellow pillar, then press the runes to spell out the word OPEN:

O
N
P
E

You will automatically grab an iron key. Go back and head through the door.

Mansion

Go forward twice, right 3 times, and into Giles' room. Talk to Giles about everything, then leave the house by going back, left 3 times and back 3 times.

Forest

Walk back, left, back and left twice to return to the hanging body, then continue forward and use your iron key on the rock face. Try to enter, but it is too dark. Return to the mansion by going back, right twice, forward, right and back, then head through the door.

Mansion

Head right twice and take the oil lamp from over the fireplace. Return left twice and back out of the house.

Dig Deeper

Forest

Once again, go back, left, back and left twice, then forward. Continue forward into the cave The Horror. Search the bones on the left 3 times to get a locket. Return to the mansion by going back twice, right twice, forward, right and back, then head through the door.

Mansion

Go right twice and talk to Molly. Just to the left, Isabelle won't have anything new to say to you. Continue left 3 times and talk to Gary, then go left twice more and talk to Francesca - you will give her the locket. Next head forward, right 3 times, forward twice and right 3 times. Use the green vase to open a secret passage, then continue right. Read through the bible, which mentions the following in order:

  1. White horse
  2. Crown
  3. Red horse
  4. Sword
  5. Black horse
  6. Balances
  7. Pale horse
  8. Death

Now examine the pulpit 3 times. Use your nail file on the pulpit, then examine it again and press the buttons in the order indicated by the passages in the bible:

5
2
6
7
1
4
8
3

You will automatically take the Gutenberg bible Sacred Text. From here, go back, left 3 times, back twice and left twice. Talk to Gary, then go right twice, forward twice and try to go left - you need to somehow calm down Lady Dennison. Head back, right 3 times and forward, then use your screwdriver on the music box. After automatically returning to the locked door, use the bedroom key on the door, but you will be chased away. Leave the house by going back 3 times.

Forest

Head back and right. Use your steel wire and garden hose on the wagon, then enter the shallow waters. Grab the wallet from the left Diabolical Plans, then go back up. Return to the mansion by going left and back, then head through the door.

Mansion

Go right twice and talk to Molly. Just to the left, talk to Isabelle. Continue left 3 times and talk to Gary, then go left twice more and talk to Francesca. Next head forward, right 3 times, forward twice and right twice. Enter the room here and talk to Penelope - you will go with her and she will give you a bottle of arsenic.

Back out of this room, then go left, forward, right twice and into Penelope's room again. Examine the mirror twice to find some sheet music. Return down to the music room by going back, left twice, back twice and right. Talk to Isabelle, and you will give her the music.

Next walk left, forward twice and left - Charles will leave with the bottle of arsenic. Enter the room here and examine the dresser. Go right and examine the chest twice - you need to learn a code word to unlock it. Head left, back, right 4 times and into the room to talk to Giles. Now back out, go left 6 times and enter this room - Lady Edith will give you a cryptic clue.

Return to the kitchen by going right 3 times, back twice and left 4 times. After automatically talking to Francesca, talk to her until she gives you the key. Now go forward, right 3 times, forward twice and left 3 times. Enter the room again and talk to Lord Alfred and Lady Edith. Leave the mansion by going back, right 3 times and back 3 times.

Forest

Walk back and left twice, then examine the prominent rock until you see the name MargueriteCristal. Return right twice and back, then head through the door.

Mansion

Head forward twice, left, forward and right. Open the chest and search it to find a diary Book of Secrets. Return left, back, right, back twice and right. Talk to Isabelle and you will give her the diary. After playing the music, head right twice and down Down Below.

Escape

Mansion

Pick up the whip. Examine both cages until you have loosened the hinges a little. Use your whip on either cage. Examine the iron maiden, then use the spanner on it At Long Last.