Stalker 2 Side Quest Guide

In Stalker 2: Heart of Chornobyl, players exploring The Zone will stumble upon various NPCs, triggering quests ranging from minor tasks to substantial side missions like "For Science!". This mission involves Skif meeting Yaryk Mongoose, who then assigns the player the task of activating a second measuring device atop a silo. While short, it rewards players with a Malachite pass, granting access to the STC Malachite facility.

1. Initiating the "For Science!" Quest:

Locate Yaryk Mongoose within the Central Elevator area of the Chemical Plant. Approaching the location will trigger a radio conversation between Mongoose and Skif, prompting Skif's arrival. Head left from the elevator, past conveyor belts, and ascend the rusty stairs. Vault the railing to reach Mongoose on the first floor and speak with him. He'll explain the need to activate a second device on a nearby silo, initiating the "For Science!" side quest.

2. Reaching the Silo's Summit:

Exit the room and climb to the building's roof. Eliminate any rodents encountered. A room with broken windows allows access to an external walkway and ladder leading to the silos. Jump to the connecting walkway, equipping your bolt gun to counter electro anomalies. Proceed left along the silo's top to activate the measuring device. Activating the device will attract Bloodsuckers. Choose to fight or evade them to return to Yaryk Mongoose.

3. Confronting Yaryk Mongoose:

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