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The subject of this article appears in S.T.A.L.K.E.R.: Shadow of Chernobyl.

My name is Kruglov. I am a professor of biology, I study the Zone. Yesterday, for example, I found an animal of particular interest - Antropomorphus Dendromutantus Vulgaris. I mostly find and document new species of mutant animals, their traits and distinctive features. The information is then thoroughly studied and transferred to the outside world. Some of it, of course, goes to the Barkeep. My discoveries have helped to save the lives of many stalkers.
― Kruglov introducing himself

Professor Kruglov (Ru. Круглов) is a character in S.T.A.L.K.E.R.: Shadow of Chernobyl.

Background[]

Ph.D. in biology. Studied pathogenic mutations in animals outside the Zone. Came to the Zone to study blind dog mutations[non-game. 1]. He is a colleague of Professor Sakharov and is known to also work with Barkeep.

He is very enthusiastic about the Zone (although, obviously, aware of its dangers) and considers it the greatest chance of increasing humanity's scientific knowledge and revolutionizing technology[quote. 1]. Despite the Zone's dangers, he considers it as a great opportunity, which puts him at odds with both Duty and Freedom[quote. 2].

Appearances[]

Shadow of Chernobyl[]

The player first meets Kruglov during their first visit to the Wild Territory, where he and his teams have been pinned down at the crash site of their helicopter, which was shot down by a group of mercenaries led by Wolfhound. Upon noticing the player, he sends them a call for help.

Should the player help Kruglov, then after killing Wolfhound and his men, they will have to escort him through a construction site where more mercenaries attempt to ambush the duo. After fighting off the mercs, the player must clear the way through a burner-filled tunnel leading out to Yantar. Successfully escorting Kruglov safely to Yantar will have him thank the player by giving them his flash drive, which can be given to Barkeep for 5000 RU. In addition, Sakharov will give the player a free SSP-99 Ecologist suit for rescuing Kruglov as an extra reward.

If Kruglov is killed at any point during the escort, or the player ignores his call for help, then the player can still retrieve his flash drive, although its content will have been wiped out with a posthumous message[quote. 3]. One can still give the flash drive to Barkeep, although he will not give any money for it and simply make a sarcastic remark about its contents[quote. 4].

Provided Kruglov has been escorted to Yantar safely, he will later be found at the mobile lab and take part in radiation measurements around the Production complex for Sakharov. He initially refuses to do it on his own, but will accept carrying out the measurements if the player accompanies him. One must then escort Kruglov to the nearby lowlands, and take him back to the bunker safely. Kruglov can once again die at any point of the mission due to the numerous Zombified Stalkers around the area; if he gets killed before the measurements are done, then the player will obtain a lower-grade Psi-helmet from Sakharov. If Kruglov manages to survive, he will return to the lab and remain there for the rest of the game. If Kruglov died in the Wild Territory, then Assistant Semenov will take over Kruglov's role in Yantar.

Related missions[]

Dialogue[]

Quote Condition

Now you've done it, Wolfhound! A military chopper is coming to blow you to pieces!

After passing the watchtower with the merc sniper

You stalker! Help us! We were attacked by mercs and half of our team was killed. Help us, and I promise you won't regret it.

Cutscene

Help us break through the ambush by the plant. I've uploaded the coordinates. Watch out, Wolfhound and his crew are by the chopper.

After the first call for help

If you attack, I will destroy the information. You won't get my work!

After Wolfhound's first threat

If you don't want me to destroy the research results, stay away from me!

After Wolfhound's second threat

As you wish.

After Wolfhound's third threat

Stalker, I'm begging you! We were returning from Yantar when the mercs shot down our helicopter. I heard they were looking for information but I know they will kill us.

First time approaching Kruglov in Wild Territory

Whatever you say, Marked One. But you go first and I'll follow you. I'm a third grade fighter, so you'd better field the ground yourself.

After agreeing to help Kruglov

The'yre following us? Marked One, stop them!

In combat against mercenaries

Marked One! Marked One, stop them! They'll kill us all!

Ambush... Ambush!

Hurry up, before anyone gets here!

After repelling a mercenary ambush

Marked One, there's a Burner anomaly ahead in the tunnel. We'd better split up and go one by one, that will give us a better chance to survive. You go first, and when I see you've reached the end of the tunnel, I'll follow. Beware of the fire traps, and look out for hot air distortions!

Approaching the Burner tunnel

We are safe, finally. Thank you for your help. I owe you one, so, here, take this flash drive. These are the results of our last expedition. I'm sure Barkeep will pay you well for this stuff.

After passing the Burner tunnel

If you come to our mobile lab in Yantar, we'll give you a real scientist suit.

Quote Condition

I don't give a shit, I'm not going anywhere alone.

In response to Sakharov's first remark

Wait a minute, let me do the metering, and we'll move on.

After reaching the drainage pipe

Okay, okay... Little off the scale, but the radiation is normal. We need to move on.

After the first measurement

Hmm... The detector seems to have gone off scale. Marked One, we need to get deeper inside, I can't make out anything in here.

After the second measurement at the end of the drainage pipe

Shit! Imminent blowout! Run, Marked One! Hell is about to break loose!

Before the blowout

*mumbling*

Idle, after the blowout

We've got to get out of here, quick...

Helping Kruglov after the blowout

I've got the measurements, now we just need to get back to the bunker.

Here are the results. Here, here, and here... Couldn't be any more accurate.

After returning to the bunker

Glitches[]

  • There is a bug causing Kruglov to not follow the player after one talks to him and suggests him to follow. This is probably caused by saving right before Kruglov asks the player to help him, making him to fight like a usual NPC. The only way to avoid it is not to save before attacking mercenaries as there is no way to make Kruglov follow the player after this bug occurs.
  • Near the end of the first escort mission, before the Burner anomalies in the tunnel, it is possible that Kruglov may freeze and not follow the player after he goes through the tunnel. It is also possible that he will go through the tunnel, but talking to him will crash the game.
    • Another bug is that he may go through the anomaly tunnel unharmed, but then he will draw his weapon, aim at the tunnel, and freeze. These bugs can be avoided by going back to a previous save game and restarting the mission. This anomalous behaviour may also be caused by enemy units spawning randomly within the NPC's detection radius. Elimination of these units will end the anomalous behaviour and progress the game normally in the fully patched version.
  • In the earlier versions of the game, it is possible to use following bug: after escorting Kruglov and protecting him from the mercenaries, one can simply press "Esc" after receiving the flash drive and repeat it indefinitely. Every flash drive obtained can be exchanged for 5 000 RU from Barkeep.
  • If one manages to keep Kruglov (or Semenov) alive by killing all the attackers quickly, then after talking to Kruglov he will reply normally but won't actually leave the area.
  • There is a bug/exploit that allows player to ignore further main quest segments and complete the game. To do this, the player needs to rescue Kruglov in the Wild Territory and escort him to Yantar; there, one needs to kill Kruglov inside the bunker (the only possible way in vanilla game is to damage and kill him with grenades from outside the bunker). Sakharov will react as though Kruglov was killed during the measurements mission, and the player will receive a Not adjusted psi-helmet and subsequent instructions to loot Vasiliev's body.
    • The same exploit applies to Semenov if Kruglov was not rescued/escorted
  • In rare cases, he may attempt to shoot enemies that get too close to the mobile science lab. However, the door will not open and the player cannot make him budge until the assailants are killed.

Gallery[]

Trivia[]

  • "Antropomorphus Dendromutantus Vulgaris", which Kruglov mentions in his introduction, translates from Latin as "humanoid ordinary wooden mutant", i.e. Pinocchio.
  • Kruglov, like all Ecologists, becomes hostile to player if one joins the Freedom faction.
  • Kruglov does not react to the player killing his fellow scientists.
  • Kruglov starts initially armed with nothing but a Walker P9m, but can be given any better weapon for combat use, which is likely necessary in order to maximize his chances of survival during both of his missions.
  • Kruglov's flash drive contains information that the source of psy radiation is located in the center of Yantar lake, while in actual game, it's hidden in Lab X-16. This is probably due to the earlier versions of the game, where the source was really located in the middle of the lake.

Notes[]

References[]

Sources
  1. S.T.A.L.K.E.R stable_bio_name.xml, id=ros_kruglov_bio
Quotes
  1. S.T.A.L.K.E.R Kruglov: "The Zone is a wonderful gift to humanity. Of course normal existence here is not possible due to the high radiation levels, and aggressive mutants. All of these things are obviously extremely dangerous but they are also things of great scientific value. The Zone is almost a natural experiment, a treasure for scientists! The extent to which humanity's knowledge could be increased through the study of the Zone is unfathomable. Technology, medicine, new plants- medical and edible, biotechnology, cures for incurable diseases…anything! Perhaps we can solve the food problem for the entire planet. If people didn't interfere, science could lead humanity into a new Golden Era!"
  2. S.T.A.L.K.E.R Kruglov: "So you understand that too? It's wonderful to discover that there are those among you who are not narrow-minded practical people. I've always said it's important to look at the whole set of issues from a broader perspective, to distance ourselves from the simple human measures. Even if the Zone has done harm to humanity, it can still be of great use to us!"
  3. S.T.A.L.K.E.R Professor Kruglov's flash drive (corrupted): "I, professor Kruglov, am deleting the results of our research for the sake of science and humanity as a whole. Dangerous knowledge must not pass into the hands of unreliable people who will seek to use it for the achievement of their criminal objectives. Those who read this note should know that our group was shot down above the Wild Territory by Mercs led by a notorious cutthroat called Wolfhound. By the time you read this we will probably be dead."
  4. S.T.A.L.K.E.R Barkeep: "Well, well. Information? Straight from professor Kruglov? You taking the piss or what? "I am professor Kruglov and I am deleting reports about our research for the sake of science and humanity..." And this is the info you were supposed to get!? Well, shit...I'm sure Duty will be "happy" about this."
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