Atomic Heart – Annihilation Instinct is the first major story expansion for Atomic Heart , developed by Mundfish and published by Focus Entertainment . Available on Steam for PC , this DLC continues the story following one of the main campaign’s endings, drawing Major P‑3 back into the dangerous depths of Facility 3826 to uncover the truth behind NORA and the collapse of the Kollectiv network. Set in an entirely new location known as the Mendeleev Complex , the expansion introduces a hostile swamp‑covered region and surrounding research facilities never seen in the base game. These environments add verticality, environmental hazards, and new enemy behaviors to Atomic Heart’s distinctive retro‑futuristic world. Players must adapt to unfamiliar terrain while investigating secrets buried beneath the ruins of Soviet scientific ambition. Combat is significantly expanded through the introduction of shape‑shifting machines capable of morphing mid‑fight, forcing players to constantly adjust tactics. To counter these new threats, Annihilation Instinct adds two brand‑new weapons to P‑3’s arsenal: Secateur Atomic Heart - Annihilation Instinct (DLC) DLC STEAM digital - Play-Asia.com , a versatile ranged weapon with dual firing modes Klusha , a melee weapon designed for slashing and piercing attacks In addition, players gain access to the Technostasis ability for the Polymer Glove, allowing temporary time manipulation to control enemy movement and battlefield flow. Visually and tonally, the DLC retains Atomic Heart’s blend of body horror, brutal combat, and dystopian sci‑fi aesthetics while introducing new enemy designs and a powerful boss encounter tied to the secrets of the Mendeleev Complex. The expansion is included in the Atomic Pass , Gold Edition , and Ultimate Edition , but requires ownership of the base Atomic Heart game to play. Key Features Continuation of Atomic Heart ’s main storyline Explore the Mendeleev Complex and surrounding swamp region Battle new shape‑shifting enemies and a powerful boss Use two new weapons : Secateur (ranged) and Klusha (melee) Harness the Technostasis ability to manipulate time Note: This content requires the base game Atomic Heart to play
Ships from Japan and Hong Kong. Standard shipping typically 7–14 days; express options available. Packaging is collector-grade — no price stickers, items arrive shrink-wrapped. Asia/Japan region items are import-only; verify console region compatibility before ordering.