STALKER 2 “Sealed Truth” Update Now Available

X-Lab opens again

GSC Game World has released the “Sealed Truth” update for S.T.A.L.K.E.R. 2: Heart of Chornobyl, adding a new narrative activity built around the long-shrouded X-Lab facilities.

The update is live now on PC, PS5, and Xbox Series X|S, giving players a new story tied to one of the Zone’s most iconic mysteries.

Diod leads the new mission

The setup starts with Diod, a technician from Slag Heap, who is rumored to have found a way into the lower levels of X-18.

Players step in as Skif, taking what looks like a straightforward paid job that quickly turns into a risk-heavy run underground.

More story before the DLC

GSC says the update is meant to expand the world with a smaller but meaningful story encounter, rather than a massive system overhaul or large content patch.

It also works as a lead-in to Cost of Hope, the game’s next expansion, which is scheduled to arrive this summer.

Zone support keeps rolling

The new mission doubles as a community thank-you while the studio tees up the DLC reveal. For players still roaming the Zone, it is another sign that S.T.A.L.K.E.R. 2 support is shifting toward new story content, not just fixes and tuning.