: Introduced ways to bring the Crimson Trader into your bunker and new interactions with the Green Army.
The search for a file named "zero-sievert-v0-27-1-zip" primarily points to discussions around , which was a significant early access release for ZERO Sievert in December 2022.
: Added festive items like the Santa Claus armor, the Santa EC74 weapon, and craftable Christmas lights. zero-sievert-v0-27-1-zip
: A hotfix for trade screens and UI issues was released as recently as April 23, 2026 .
If you are looking for the content associated with this version, the 0.27 update introduced: : Introduced ways to bring the Crimson Trader
Be wary of third-party sites offering "zip" downloads for specific game versions, as these are often unofficial and may contain malware. It is recommended to use the official ZERO Sievert Steam page for the most secure and up-to-date files.
As of April 2026, the game has progressed far beyond the 0.27 branch: : A hotfix for trade screens and UI
: Tweaks to item visuals (Game Station and Portable Console) and various bug fixes. Current Version Status