Stalker 2: Science Quest Guide

In the immersive world of *Stalker 2: Heart of Chornobyl*, players will encounter various NPCs while exploring The Zone, which can lead to intriguing side quests, such as the "For Science!" mission. This quest involves Skif teaming up with Yaryk Mongoose, who tasks players with activating a second measuring device atop a silo. Although it's a relatively short quest, it rewards players with a Malachite pass, granting access to the STC Malachite facilities.

How to Start "For Science!" Side Quest in Stalker 2

To kick off the "For Science!" side quest in *Stalker 2*, players should head to the Central Elevator location within the Chemical Plant region. As you approach, you'll receive a radio call from Yaryk Mongoose, inviting Skif to meet him on the upper levels of the building.

Upon entering the Central Elevator location, veer left past the conveyor belts and ascend the rusted stairs. Mongoose awaits on the first floor; you can vault the railing and enter his room to initiate a conversation. He'll show you a measuring device and mention another one atop a silo, explaining that both need simultaneous activation. Accepting his request will officially start the "For Science!" side mission.

Reaching the Top of the Silo During "For Science!" Side Quest

After concluding your chat with Mongoose, exit the room and climb the stairs to the building's top. Be prepared to fend off a pack of rodents on your way. Navigate to a room with broken windows on both sides, climb out of a window, and descend the ladder on the external walkway.

From there, jump onto the connecting walkway leading to the silos. Equip your bolt to safely navigate through the electro anomalies as you proceed left across the silo's top to reach and activate the second measuring device. Once activated, be ready for a pack of Bloodsuckers that storm the compound. You can choose to either eliminate them or evade them to return to Yaryk Mongoose.

Confront Yaryk Mongoose About the Bloodsucker Pack

Upon reaching Mongoose, he'll explain the unintended consequences of the experiment. Players face a choice: kill Mongoose for endangering Skif's life or accept the reward and leave. There are no repercussions for either decision, so you can choose based on your preference. If you opt to eliminate Mongoose, you'll loot the Malachite pass from his body.

However, it's advisable to listen to Mongoose's explanation and opt for the non-hostile route. This choice will grant you the Malachite Pass along with additional coupons. With the pass in hand, you can now access the STC Malachite base, provided you don't already have entry through a main mission.