# S.T.A.L.K.E.R. 2: Heart of Chornobyl Content Update Sealed Truth — a new questline for you to explore

- Product: S.T.A.L.K.E.R. 2: Heart of Chornobyl (https://whatsnew.fyi/product/s-t-a-l-k-e-r-2-heart-of-chornobyl)
- Vendor: GSC Game World
- Date: 2026-04-14
- Original notes: https://store.steampowered.com/news/app/1643320/view/508484486901535665
- Permalink: https://whatsnew.fyi/product/s-t-a-l-k-e-r-2-heart-of-chornobyl/releases/2026-04-14-content-update-sealed-truth-a-new-questline-for-y

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **added** — Explore a new questline that starts when you talk to Diode
- **added** — Add new loading screens
- **fixed** — Fixed an issue causing overpopulation of strong mutant types in long campaigns
- **fixed** — Fixed an issue where the mission 'Dark as a Dungeon' would immediately cancel if the player had already reached the point of no return

##### **Sealed Truth is focused around the new questline. Explore the places of horrific experiments and find the answers. With calculated risks, you can get your hands on… Let’s not get ahead of ourselves.
**

##### **☢️ **What’s new

- Explore a new questline that starts when you talk to Diode.

- Fixed an issue causing overpopulation of strong mutant types in long campaigns.

- Fixed an issue where the mission 'Dark as a Dungeon' would immediately cancel if the player had already reached the point of no return.

- Added new loading screens.

_The update is available after completing the story quest "Hot on the Trail" and before starting the quest "A Minor Incident"._**

⚠️ WARNING**

The Zone is ever-changing, and a new update can shift Her structure. If you’ve chosen to walk the path with modifications, know this: they may not withstand the latest shifts. **If you have performance or stability issues following the release of Sealed Truth, we recommend you to disable your mods**. If you continue to experience issues, please visit [https://support.stalker2.com/hc](https://support.stalker2.com/hc) for additional troubleshooting steps and assistance.

For more information on how to correctly uninstall modifications, read the dedicated topic:

Thanks for your support and feedback. The Zone keeps improving and evolving. Stay tuned and keep sharing your feedback on our social media. It’s time to put those combat improvements to the test.

Please, if you face an unexpected “anomaly”, that is not supposed to be in the game, report it to our Technical Support Center. Our colleagues will take a closer look at it to annihilate and destroy the danger to the Zone. [https://support.stalker2.com/hc](https://support.stalker2.com/hc)

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](https://support.stalker2.com/hc)