Developer
Rebellion
Publisher
Rebellion
Series
Atomfall
Released
Sep 16, 2025
Price checked
1 hour ago
Tracked since
Oct 9, 2026
Product code
9P99MBR5HTJG

Add-on Atomfall

Atomfall Story Expansion Pack: The Red Strain

  • 66 reviews. Mixed 69%
  • Action · Adventure · Shooter
  • Blood, Violence, Strong language, In-game purchases. ESRB M
  • Epic Games Store
  • PlayStation Store
  • Steam
  • Xbox
  • Series X|S
  • Xbox One
  • PS5
  • PS4
  • PC

Description

Continue the adventure of Atomfall with "The Red Strain” Story Expansion Pack, introducing a new location, enemies, quests, characters, items, weapons, and more. • Investigate Test Site Moriah • Enhance your Arsenal • Fight for Survival

Continue the adventure of Atomfall with "The Red Strain” Story Expansion Pack, introducing a new location, enemies, quests, characters, items, weapons, and more.

Nestled in the hills, away from the prying eyes of the locals, lies Test Site Moriah. A secret research station built on the site of an old missile testing facility, it has been shrouded in mystery ever since it opened. But something changed when the quarantine came into effect and the facility has fallen into more nefarious hands who are keen to keep its secrets for themselves. Now a route back into the facility has been located, and with it the opportunity to finally get some answers.

Investigate Test Site Moriah

Before the Windscale Disaster, the research site was home to top-secret government projects, so classified that even those at the top of B.A.R.D were unaware of their existence. Now the facility lies forgotten, deliberately sealed away from the rest of the Quarantine Zone. What secrets rest behind the locked doors? Only you can find out.

A new story in its own right, The Red Strain offers original leads that interlink with Atomfall’s core narrative, expanding the story and unlocking new endings to your adventure.

Enhance your Arsenal

Enhance your experience with a variety of new skills and equipment. Strike from the shadows with new suppressed firearms or unlock the ability to equip the heavy weaponry from disabled robots and unleash devastating attacks on your enemies.

Fight for Survival

A terrifying new threat, never encountered before enemies and challenging obstacles await you, offering an immense challenge. You will need to have your wits about you if you are to have any chance of making it out alive.

PC requirements

Minimum

OS
Windows 10 version 18362.0 or higher

Recommended

OS
Windows 10 version 18362.0 or higher

Ratings

Steam reviews Mixed 69% · 66 reviews
Xbox 4.2 26 ratings

About the game

Developer
Rebellion
Publisher
Rebellion
Series
Atomfall
Released
September 16, 2025
Official site
ESRB M

Age rating

Blood, Violence, Strong language, In-game purchases

Languages 12

LanguageMenusVoiceSubtitles
English
Russian
Brazilian Portuguese
French
German
Italian
Japanese
Korean
Polish
Simplified Chinese
Spanish
Traditional Chinese

Install size

Xbox One
13 GB
Xbox Series X|S
13 GB
Computer
4.1 GB

More from Atomfall 6

Everything for this game in the market