You do not need a separate download for the Spanish language pack; it is included in the base game files. However, you must be in the to change the audio, as this setting is locked once you are actively in story mode.
Players generally praise the Spanish dub for its high production value, noting that it maintains the game's immersive atmosphere. Some players prefer it over the English dub, which has been criticized for having a "cringey" or "disinterested" tone for the main character. Playing in Spanish allows you to follow the fast-paced, lore-heavy dialogue during combat without having to constantly read subtitles. Atomic Heart: How To Change The Language atomic heart language pack espanol
The game specifically lists support for "Spanish - Spain" for both interface and full audio. You do not need a separate download for