kinguin loginAttention!From 1st January 2015 the European Union changes the tax regulations.Please choose appropriate tax region below.

Start selling now

Sign in
arrow login
100% verified sellers
A money back guarantee
KBP dedicated deals
Priority with our Customer Service
Frequently Asked Questions
Create a Ticket
Fast support reply
Chat online

Theory of Fear Steam CD Key

Theory of Fear Steam CD Key
Indie Casual Visual Novel
Region free
English Russian
Earn up to $0.25 with Kinguin Mafia! Learn more!
Price: $4.90
Buyer Protection

You are protected against any quality faults of this products caused by the seller (invalid, duplicate keys etc.).

By disabling it the customer takes the full responsibility for any potential issues.

Sold by: Zefir
Check available payments

Available payment methods

{{ item.title }}
  • Description
  • Activation details

Theory of Fear Steam CD Key

Platform:  28/03/2017
Release Date:  Steam

Product Description

"Theory of Fear" is a visual novel combining "slice of life" and "dark fantasy" genres. In the daytime, the main heroine is an ordinary girl, a first-year university student, who does an evening job in a café. At night, in her dreams, she visits another world with extraordinary guys, who start pursuing her.

At first, she makes little account of her dreams, thinking they're no more than vivid fantasies, but the more she drowns into them, the clearer her realization of the Midworld's reality becomes – it exists and those who live there aren't going to leave her alone…


  • The novel consists of 12 chapters.
  • There are 6 characters in the game: one main heroine and 5 guys, with whom the girl can form relationships.
  • 12 different endings, which depend on the player's choice during the game.
  • A system of bonuses, which can be exchanged for different pieces of additional content in the Secret Room (interesting stories from the game world, "secret" biographies of the characters and so on).

System Requirements

PC System Requirements:

  • OS: Microsoft Windows XP / Vista / 7 / 8 / 8.1 /10
  • Processor: Pentium 4 1.5 GHz / Athlon XP
  • Memory: 512 MB RAM
  • Graphics: DirectX 9.0c compatible
  • DirectX: Version 9.0c
  • Storage: 3 GB available space
  • Sound Card: DirectX 9.0c compatible


Mac System Requirements:


Linux / SteamOS System Requirements:

Key activation

  1. Go to: and download STEAM client

  2. Click "Install Steam" (from the upper right corner)

    Download Steam
  3. Install and start application, login with your Account name and Password (create one if you don't have).

  4. Please follow these instructions to activate a new retail purchase on Steam:

    • Launch Steam and log into your Steam account.
    • Click the Games Menu.
    • Choose Activate a Product on Steam...
    • Follow the onscreen instructions to complete the process.

    After successful code verification go to the "MY GAMES" tab and start downloading.

Unable to activate even after following the steps above?

Report a problem!

Are the instructions not clear? Let us help you!


Send a ticket

Live Chat
If you change the country of residence the retail price will include the tax applicable for that country, or no tax if outside of the EU
I understand