Stalker 2: For Science! Side Quest Walkthrough

As players venture through The Zone, they’ll come across a range of NPCs that can initiate anything from a small quest to a more extensive side mission, similar to For Science! in Stalker 2: Heart of Chornobyl. In this particular mission, Skif teams up with Yaryk Mongoose, who assigns players the task of activating a second measuring device located on top of a Silo. Although it’s a brief quest, completing it grants players a Malachite pass, allowing them 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 need to find Yaryk Mongoose at the Central Elevator in the Chemical Plant area. As you approach, you’ll hear Mongoose contacting Skif over the radio, urging him to come up to meet.

When you arrive at the Central Elevator area, take a left and walk past the conveyor belts. Then, go up the old, rusty stairs. Mongoose is waiting for you on the first floor, so you can easily jump over the railing and step into the room to have a chat with him.

Yaryk Mongoose is standing by a measuring device and will point out that there’s another device located on top of a silo. To proceed, both devices must be activated at the same time, so Skif will have to take care of the one on the silo. Agreeing to his request will kick off the “For Science!” side mission in Stalker 2.

Reaching the Top of the Silo During “For Science!” Side Quest

After the conversation wraps up, leave the room and make your way up the stairs to the building’s top floor. You’ll come across a group of rodents approaching you. Just take care of them and step into a room that has shattered windows on either side. You can then climb out of one of the windows and use the ladder to descend onto the walkway outside.

From this point, you’ll hop onto the walkway that leads to the Silos. Don’t forget to grab your bolt, as you’ll face some electro anomalies on your journey to the second measuring device. Continue moving left along the top of the silo to find and activate the measuring device.

After you activate the device, a swarm of Bloodsuckers will charge into the compound. You have the option to take them all out or sneak past them to find Yaryk Mongoose and discuss this alarming situation.

Confront Yaryk Mongoose About the Bloodsucker Pack

When you get close to Mongoose, he’ll ask Skif to explain the unexpected outcome of the experiment. Players can choose to either eliminate Mongoose for endangering Skif or simply accept the reward and walk away. There are no repercussions for your decision, so feel free to choose the option that fits your style. If you decide to take Mongoose out, you can loot the Malachite pass from his remains.

It’s a good idea to listen to Mongoose and select the “non-hostile” choice. By doing this, you’ll earn the Malachite Pass along with some coupons as a reward. With the pass in hand, you can now access the STC Malachite base, unless you already have entry through one of the main missions.