Atomic Heart DLC is Already in the Works

The game will have four single-player add-ons.

Buy Atomic Heart - Annihilation Instinct (Windows) - Microsoft Store en-SA

If there is future DLC, I imagine it would include these weapons from the World of Atomic Heart book they released : r/atomicheart

Atomic Heart: Annihilation Instinct DLC is Out Now

Atomic Heart: Meet BEA-D, A Brand New Enemy

Atomic Heart review

Atomic Heart 2 development already being planned

Atomic Heart getting DLC this summer

Atomic Heart 2: DLC Release Date and What to Expect — Eightify

Atomic Heart DLC 'Trapped in Limbo' Arrives in Feb 2024