Atomfall is a single-player survival action-adventure game set in a post-apocalyptic version of Britain, where players navigate a mysterious quarantine zone filled with dangers and secrets. The Red Strain expansion builds on this foundation by introducing a new storyline centered around Test Site Moriah, a hidden research facility overtaken by unknown forces after a disaster. This DLC weaves into the main narrative, offering fresh quests, characters, and endings while enhancing the core experience with additional weapons, skills, and enemies.
Gameplay
In Atomfall, survival hinges on exploration, resource management, and tactical combat within an open quarantine zone. Players scavenge for materials to craft items and weapons, adapting to threats like hostile robots and mutated creatures. The Red Strain expansion adds layers to this by incorporating new skills for stealth approaches, such as using suppressed firearms for quiet takedowns or repurposing robot weaponry for heavy attacks. Combat mixes ranged shooting with melee options, requiring careful ammo conservation and environmental awareness to survive encounters. Without a traditional leveling system, progress comes from discovering gear and honing strategies through trial and error, emphasizing real-world problem-solving over stat progression.
The expansion introduces deadly contagions as environmental hazards, forcing players to manage health amid infected areas and new enemy types that demand adaptive tactics. Crafting remains central, with fresh items and equipment tied to the Test Site Moriah location, encouraging thorough investigation of its sealed sections for hidden resources.
Game Modes
Atomfall focuses on a single-player campaign, delivering a narrative-driven experience without multiplayer components. The core game unfolds through an interconnected story in the quarantine zone, and The Red Strain integrates as an endgame expansion that extends the main adventure. Players access this content after progressing in the base game, unlocking new leads that branch into alternative endings.
Story and Exploration
The narrative in Atomfall revolves around uncovering the truths behind the Windscale Disaster and the quarantine's mysteries, with factions like B.A.R.D. influencing the plot. The Red Strain dives deeper into classified government projects at Test Site Moriah, a forgotten facility now controlled by nefarious groups. Quests here interlink with the original story, revealing secrets through exploration of locked doors and hidden routes.
Exploration rewards curiosity, as players traverse hills and abandoned structures, piecing together lore from environmental clues and character interactions. The expansion's new characters provide fresh dialogue and alliances, enriching the world's lore without overwhelming the solitary survival feel.
Is It Worth Playing?
For those drawn to atmospheric survival games with a focus on exploration and narrative depth, Atomfall and its Red Strain expansion offer a compelling package. The DLC has earned a 71% positive rating from 46 user reviews, praised for its inventive setting and improved combat scenarios compared to earlier content. It receives ongoing support through updates, with this expansion released in September 2025 adding meaningful story extensions and gameplay enhancements.
If you enjoy titles emphasizing tactical survival and story integration without heavy RPG mechanics, this is a solid choice, especially for completing the full narrative arc. However, players seeking robust multiplayer or extensive progression systems might find it less engaging, as the emphasis stays on solo discovery and challenge.
