The Ritual Menace achievement is a new addition to the game as of August 2023. To get this achievement you mus bring the lever you find in the Library of Chapter 2 with you to the beginning of Chapter 4 and use it open a secret door behind a bookcase.

In my discovery that the game had dropped from my 100% list, I noticed a friend had already unlocked the achievement. This friend, who's handle is Slick, has made a guide featured on Astats. They showed that this achievement could be gotten using Console Commands. This is a guide built from that guide with Slick's permission.

Now, of course, I do recommend plaything through the game. It was definitely a challenge for I, someone who does not like horror games. You can read my review of it and I still stand by what I said back in 2015.

You're here for the guide though.
Let's get started.

In your settings, you can check the Keyboard options for what your default keys are set to.

For my game, "P" is the Console. This will drop down an active text bar from the top of the screen.

NOTE: You must type commands exactly as they are written. No extra spaces, characters, or capitalization.

You can enter straight from the main menu to Chapter 4 or use the following console command to load it:

map tfo_c3_1

Once you load in to Chapter 4, you'll face the Tourists/Survivors. Choose the peaceful options to get through the conversation without being shot.

After you're done, it doesn't matter if you tell them to follow or stay.

Just head down the hallway and enter the door just to your left. Once you're inside, head over to the wall where you see the Socket for the Rusty Lever. Next, look at the ground.

Open the Console and type the following:

ent_create inv_inventory_item model models/item/rusty_lever.mdl scriptfile Lever


Once you've spawn the lever, open your inventory use it on the wall socket. Then flip the switch to open the bookcase and you'll be rewarded with the Ritual Menace Achievement!