Stalker 2: For Science! Side Quest Walkthrough

In Stalker 2: Heart of Chornobyl, players exploring The Zone will stumble upon numerous NPCs, leading to various quests, including the "For Science!" side mission. This quest involves Skif meeting Yaryk Mongoose, who needs help activating a second measuring device atop a silo. While short, completing it rewards players with a Malachite pass, granting access to the STC Malachite facility.

Initiating the "For Science!" Quest:

The "For Science!" quest begins by locating Yaryk Mongoose in the Central Elevator area of the Chemical Plant. Upon approaching, Mongoose will contact Skif via radio, requesting a meeting. Inside the Central Elevator, proceed left, past the conveyor belts, and ascend the rusted stairs. Mongoose is on the first floor; vault the railing to reach him. He'll explain the need to activate a second device on a nearby silo, initiating the mission.

Reaching the Silo's Summit:

Exit the room and climb to the building's rooftop. Eliminate any rodents encountered. A room with broken windows provides access to an external walkway and ladder leading to the silos. Remember to equip your bolt-action weapon to counter electro anomalies. Proceed left along the silo's top to locate and activate the measuring device.

Activating the device attracts a Bloodsucker horde. Choose to eliminate them or evade them to reach Mongoose.

The Confrontation and its Outcome:

Upon reaching Mongoose, he'll explain the experiment's unintended consequences. Players can choose to kill Mongoose for endangering Skif or accept the reward peacefully. Neither choice significantly impacts the game's progression. Killing Mongoose allows looting the Malachite pass from his corpse. However, choosing the peaceful option provides both the Malachite pass and additional coupons. The pass unlocks access to the STC Malachite base, unless already accessible through main missions.