Stalker 2 Side Quest Guide: Unveil the Secrets of 'For Science!'

In Stalker 2: Heart of Chornobyl, players can embark on a side quest titled "For Science!" This quest unfolds through interactions with various NPCs within The Zone. The quest begins with a meeting between Skif and Yaryk Mongoose at the Central Elevator in the Chemical Plant.

Initiating "For Science!":

To start the quest, locate Yaryk Mongoose within the Central Elevator area. Upon approaching, Mongoose will contact Skif via radio, prompting a meeting. Head left from the elevator, past the conveyor belts, and ascend the rusty stairs. Mongoose is on the first floor; vault the railing to access him. He'll explain the need to activate a second measuring device atop a nearby silo, initiating the quest.

Reaching the Silo's Summit:

Exit the room and climb to the building's roof. Eliminate any rodents encountered. A room with broken windows provides access to an external walkway and ladder. Descend the ladder, traverse the walkway to the silos, and proceed left, equipping your boltcaster to counter electro anomalies. Activate the second measuring device. Activating the device will attract Bloodsuckers. Eliminate them or evade them to return to Mongoose.

Confronting Mongoose:

Return to Mongoose; he'll explain the experiment's unintended consequences. Players can choose to kill Mongoose or accept his reward. Neither choice significantly impacts the game's progression. Choosing the non-hostile option yields the Malachite pass and some additional rewards. The Malachite pass grants access to the STC Malachite facility, unless already accessible through main missions. The quest concludes with the acquisition of the Malachite pass, providing access to the STC Malachite.