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Fear Equation

Game overview

Fear Equation

Fear Equation is a turn-based horror strategy game where you play the engineer of a modified freight train, built to protect its occupants from a deadly fog that brings their nightmares to life. Survival depends on analysing passengers' dreams, crafting defenses, upgrading, scavenging and resource management.

Horror Rogue-like Simulation Building Colony Sim
Last tracked players
0
All-time peak
1
24-hour change
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Steam reviews
75.3% positive
93 reviews · via SteamSpy

Delayed observation · last tracked . Values marked unavailable are not estimated.

About this game Read the full description

The world is covered in fog. Most who enter the fog disappear, and those who survive say it brings their nightmares to life.



No-one knows where it came from, but they all have ideas. Some say it's an experiment gone wrong, others believe it's divine judgement. And you? All you know is that the Sun is rumoured to shine just over the horizon.

You are The Engineer. You have designed the perfect system: a train, sealed off from the fog, ready to rescue survivors and take them to salvation.

If only they'd listen...

Fear Equation is a turn-based strategy with rogue-like elements where you must take control of a modified freight train in an end-of-the-world scenario. The landscape has been overrun by a thick, deadly fog that manifests the nightmares of those inside it. Your survival depends on tactical planning and careful resource management.


As the Engineer, you'll need to rescue survivors, analyse their dreams and build defenses to protect them from their own imaginations. Complicating matters, passengers have their own theories as to how the fog was created and will form inter-carriage factions based on their beliefs.

Every game is unique and you can customise your Engineer to dramatically change how the game is played.

Your passengers bring their nightmares with them. When the fog attacks, it will make their worst fears come alive. Read your passengers’ dream logs to help prepare defenses.

The train needs resources and there's only one way to get them: send your passengers back out into the fog. Listen to radio broadcasts for hints and equip your scavengers well. But don’t stay too long because they’ll disappear into the fog.

Passengers will group into four factions based on where they think the fog came from. Different factions are associated with different nightmares, skills and concerns. You’ll need to maximise their talents, handle their disputes and meet their needs.

Create your own Engineer with special modifiers - both good and bad - that determine your individual train's starting conditions, overall difficulty and the different courses the game can take. Personalise your Engineer further by importing photos of yourself (or others) for use with your character.

Populate your train with passengers of your own design using the custom passenger creator. Name, vital statistics, occupation, factional tendencies and influence can all be modified. As with Engineer customisation, you can import photos from outside the game to give each passenger a life of their own.

Explore a richly detailed 3D cabin and interact with computers, train controls, maps and consoles. All interaction points feature an in-game manual so you’ll never get lost.


With squabbling passengers, limited resources and wandering foes including the cult-like "Fearless" and powerful military, the fog might be the least of your concerns...

About Screwfly Studios

We're a two-man developer based in Australia, dedicated to creating deep, innovative strategy games for PC. Fear Equation is Screwfly's third title; its previous games Zafehouse: Diaries and Deadnaut are also available on Steam.

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System requirements Windows · macOS · Linux

Windows

Minimum

Minimum:
  • OS *: Windows XP, Vista, 7, 8, 8.1 or 10
  • Processor: Intel Core 2 Duo 2.2GHz or AMD Athlon 64 X2 5000
  • Memory: 4 GB RAM
  • Graphics: NVIDIA GeForce GTX 560 / RADEON R7 250X with 1GB
  • DirectX: Version 9.0c
  • Storage: 950 MB available space

macOS

Minimum

Minimum:
  • OS: macOS 10.7 - 10.14
  • Processor: Intel Core 2 Duo
  • Memory: 4 GB RAM
  • Graphics: Mid-to-high performance NVIDIA or AMD graphics card with 1GB RAM
  • Storage: 950 MB available space

Linux

Minimum

Minimum:
  • OS: Ubuntu 12.04
  • Processor: Intel Core 2 Duo
  • Memory: 4 GB RAM
  • Graphics: Mid-to-high performance NVIDIA or AMD graphics card with 1GB RAM
  • Storage: 950 MB available space
  • Additional Notes: Other Linux distributions should work, however they are not officially supported.
Game details Languages, features & support
Publisher
Screwfly Studios
Brazilian rating
14
Steam Germany rating
16
Content warning
Fear Equation features mature content in the form of text descriptions of combat, and uncommon, brief scenes containing abstract, nightmare elements.
Achievements
38
Features
Single-player, Steam Achievements, Steam Trading Cards, Family Sharing
Languages
English*
*languages with full audio support
Compatibility & accessibility Steam Deck, controllers & access features

Can I Play This?

Steam declarations and Valve's Steam Deck compatibility result. Missing data is shown as unknown, never unsupported.

Sources fresh
Native Steam builds
Windows: unknown
macOS: unknown
Linux: unknown
Steam Deck
unknown
Valve compatibility test
Input
Controller support: unknown
Structured language support (1)
LanguageInterfaceFull audioSubtitles
EnglishYesYesNo

Third-party requirements shown by Steam

Requires agreement to a 3rd-party EULA Fear Equation EULA
Steam store page fresh · checked 2026-10-06 PCGamingWiki technical notes External link only; SteamIQHQ does not ingest PCGamingWiki content.
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Game Insights

Buy Verdict

Wait — $14.99.

Not the best time to buy. Price could improve with future sales.

▬ ~41 days until next sale

Value Score

Fair Value — 59th percentile.

Price-to-player ratio ranks in the 59th percentile. Priced as Market at $14.99.

▬ Market pricing tier

Genre Benchmarks

Player Count Top 62%
Value Ratio Top 41%

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Frequently Asked Questions

Is Fear Equation worth buying right now?
Wait — $14.99. Not the best time to buy. Price could improve with future sales.
When does Fear Equation go on sale?
Not the best time to buy. Price could improve with future sales.
Is Fear Equation free to play?
Fear Equation costs $14.99 on Steam.
What genre is Fear Equation?
Fear Equation is a Indie, RPG, Simulation, Strategy game.
Who developed Fear Equation?
Fear Equation was developed by Screwfly Studios and published by Screwfly Studios.
What platforms does Fear Equation support?
Available on Steam for Windows, macOS, Linux.

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