This section contains information about the single-player achievements that can be obtained in S.T.A.L.K.E.R.: Call of Pripyat.
| | “You have provided plenty of help to Duty, and this has earned you the respect of Duty fighters and their friends. But keep in mind that not everyone in the Zone is a Duty fan.” | 
A Friend of Duty |
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Your relations with Duty have improved. If you find yourself in a pickle, Duty fighters will try to help you. Azot, the technician who favors Duty, has offered you a discount. Your relations with Freedom have deteriorated. Hawaiian, the trader who favors Freedom, will now charge you more for his goods. | | There are a number of requirements for this achievement; you must:As the description states, Hawaiian isn't too pleased with your achievement and will increase his prices by 10%; however, he also opens up his inventory selling a much larger variety of weapons, armor and ammunition; the selection is based on what the Duty faction prefers such as weapons and ammunition used in Warsaw Pact countries. Refer to the Traders, Inventory & Prices to see which new items become available - they will be marked with a dark yellow or bright red background. The achievement description mentions "Azot" the technician - this is obviously Nitro; I guess GSC just forgot to change the name during the english translation. |
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| | “You have provided plenty of help to Freedom, and this has earned you the respect of Freedom fighters and their friends. But keep in mind that not everyone in the Zone is a Freedom fan.” | 
A Friend of Freedom |
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Your relations with Freedom have improved. If you find yourself in a pickle, Freedom fighters will try to help you. Hawaiian, the trader who favors Freedom, has offered you a discount. Your relations with Duty have deteriorated. Azot, the technician who favors Duty, will now charge you more for his services. | | There are a number of requirements for this achievement; you must:With this achievement, Hawaiian will give you a 20% discount, and he will have a wider selection of weapons, armor and ammunition available that is favored by the Freedom faction - this includes many weapons and ammunition used by NATO countries; refer to the Traders, Inventory & Prices page and look for items sold by Hawaiian with a dark yellow or bright blue background. This achievement also mentions "Azot" the technician, again referring to Nitro - another miss in the english translation. |
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| | “You've always helped out stalkers in trouble. Although their faction is not very tight-knit, you now have allies in the unofficial stalker brotherhood who will help you in combat and afterwards too.” | 
A Friend of Stalkers |
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Your relations with stalkers have improved. If you find yourself in a pickle, stalkers will try to help you. Stalker medics have agreed to sell you medical supplies at cost price. | | This achievement has the following requirements; you must:With this perk, both Tremor and Bonesetter will give you a discount on all items they carry; the discount seems to vary depending on the type of item, but it's in the 15-30% range. |
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| | “Your foresight has served you well: on finding notes in Strelok's group's stashes, you kept them until you found their rightful owner.” | 
A Keeper of Secrets |
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After getting the notes, Strelok found a new reason to live on and make it to his objective, whatever the cost. | | Locate the three stashes from the Strelok faction and give the three documents (Note to Fang, Note to Ghost and Note to Strelok) to Strelok when you meet him in Pripyat. I believe the achievement means that Strelok will have an improved constitution during the evacuation sequence in Pripyat, adding to the probability of his survival, at the end of the main storyline. When you give the three documents to Strelok he'll give you three scientific medkits along with both a Bubble artifact and a Flame artifact in return. |
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| | “You didn't side with either faction and always acted as a free stalker. You've not made any enemies, but you've haven't got any new friends either.” | 
A Man of Balance |
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Stalkers at Yanov value a balance of power between Duty and Freedom, which is why both the technician and the trader have given you discounts now. | | You'll earn this achievement by selling Morgan's PDA and General Tachenko's PDA to Owl, and complete the In search of Magpie mission by telling Gonta of his whereabouts. The achievement means that both Owl and Hawaiian will give you a 15% discount on all items, and Nitro a 18.75% discount on modifications and repairs. |
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| | “Although you know what it's like to be short of cash, you're not doing too badly at the moment. In fact, sometimes your wealth can be considerable, and traders value a client of your stature.” | 
A Wealthy Client |
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Traders offer you more rare and expensive goods. | | You receive this achievement once you acquire 100,000 RU - that's one hundred thousand rubles. While I haven't noticed a significant amount of new items at traders, I believe this may mean that eg. Owl will start to sell the Veles Detector. |
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| | “You found every type of artifact known to Zone researchers. This earned you the respect of stalkers and the close attention of bandits.” | 
Artifact Hunter |
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Stalkers think more of you now. Bandits will try to hunt you down whenever you venture out into the Zone. | | Find one of each artifact to earn this achievement. Although the description says otherwise, I can't say I've seen many bandits trying to hunt me down... perhaps I just need to get out more often. |
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| | “You helped Sultan outmaneuver the stalkers and take Beard's business under your control. You are now feared and respected at Zaton.” | 
Boss |
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You have earned the respect of bandits. Owl the trader has given you a discount out of fear that he may be your next victim. As agreed, Beard will now pay you a cut of his proceeds. | | You are awarded this achievement if you go through with The hit and Transaction, helping the bandits in both; then, as part of Tempting business, decide to talk to Sultan and help him run Beard out of business in Shady business, again aiding the bandits. You'll get two perks - you can pick up money from Beard once a day, somewhere between 500-2,000 RU per visit I believe, and Owl will have a much wider range of equipment for sale. The first perk is actually a result of the mission Shady business, although the description coming with the achievement could lead you to believe it's a bonus from the achievement; I guess this doesn't matter as once you get the achievement you'll have completed Shady business anyway. |
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| | “You brought the scumbag to justice. Magpie cheated and deceived many a stalker, now his time has come.” | 
Courier of Justice |
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Stalkers decided to give Magpie's loot, which he had acquired through lies and deceit, to someone more worthy. They put his stuff in your personal box at Yanov. | | This achievement is attained once you complete the mission In search of Magpie, that you can pick up from Gonta. It doesn't matter how you complete the mission - ie. you can tell either Gonta, Shulga or Loki about Magpie and you'll earn this achievement. Although the description indicates that you get Magpies loot, I've never seen it happen; I've even tried to clean out my personal box in Yanov Station before completing the mission, but alas - nothing. |
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| | “You uncovered the secret behind stalker disappearances at Skadovsk: the guilty part weren't mutants after all, but a far more dangerous foe - man. Your succesful pursuit of the truth has earned you the respect of stalkers.” | 
Detective |
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Stalkers think more of you now. As a sign of respect, stalkers have taken to leaving medical supplies in your personal box at the Skadovsk. | | This achievement is acquired once you complete both parts of the mission Find the missing hunter that can be picked up from Grouse on board the Skadovsk. It comes with a perk which means that the stalkers on the Skadovsk will put medical supplies into your personal box about once a day; this will be a total of four items each time, and they include medkits, bandages and antirads. |
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| | “You know how to solve a problem peacefully. Who needs brute force when simple words can resolve a dispute just as well? Nonetheless, you should watch out for people that shoot first and ask questions later.” | 
Diplomat |
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Freedom, Duty, free stalkers and even bandits have come to recognize your negotiation skills, and think highly of you as a result. | | This achievement is awarded if you take the peaceful solutions to both the Hostage mission given out by Grizzly, and the Debts mission offered by Vano. I believe the perk associated with this achievement is a boost in reputation across the board, ie. among bandits, lone stalkers, and both the Freedom and Duty factions. |
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| | “Azot has all the tools a Zone technician could dream of. He can now perform hi-tech modifications.” | 
Hi-Tech Expert |
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Azot can perform a unique tactical helmet modification: an infrared scanner that allows for detection of nearby humans. | | Bring Nitro all three sets of tools to earn this achievement, allowing him to upgrade the Tactical Helmet with the Infrared scanner. |
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| | “You had a team job to do, so you put a great squad together and proved you're a leader.” | 
Leader |
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Your leadership qualities improve your team's chances of survival. | | You receive this achievement if you recruit Sokolov, Strider and Vano for the team when you're leaving Jupiter for Pripyat. All the members of your team accompanying you in the Pripyat Underpass on your way to Pripyat will have improved constitution, greatly increasing their chance of survival during your trials. |
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| | “You managed to survive an emission without taking cover thanks to the anabiotic pills. The effects of this on your psyche are unclear, as you notice a strange silence inside your mind. It seems that you no longer hear a constant stream of thoughts.” | 
Marked by the Zone |
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You have a chance of surviving an emission without the aid of drugs, provided your health is in order. | | Survive three emissions using anabiotics to earn this achievement. As the description hints, you can survive emissions once you get this achievement; the emission will still drain your health but instead of killing you, you'll just pass out and awake once the emission is over, although with only very little health remaining. |
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| | “You don't try to avoid dangerous mutants - you hunt them down and do it well. Good hunters are held in high esteem among stalkers.” | 
Mutant Hunter |
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Stalkers think more of you now. In appreciation of your efforts, stalkers have taken to leaving ammo in your personal box at Yanov station. | | I believe you earn this achievement by completing Trappers two hunting missions as well as Night hunt. The perk related to this achievement means that stalkers will put ammunition into your personal box at Yanov Station once a day; the type and amount of ammunition is semi-random, but it may include 12x76 slug rounds, 5.45x39 mm AP rounds, 5.56x45 mm AP rounds, and 9x39 mm SP-6 rounds - with typically between 220 and 300 rounds in total per delivery. |
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| | “You showed the bandits and their leader, Sultan, who's boss, thus making you a popular man among stalkers. You're always welcome at Skadovsk.” | 
One of Ours |
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Stalkers think more of you now. Stalkers have asked Owl the trader to give you a discount. Beard is now offering you his best prices for artifacts. | | This achievement is earned if you decide to disrupt the bandit raid on the Shevshenko, helping the stalkers, and you bring the Compass artifact to Beard during the Compass mission. This achievement means that Owl will seriously expand his inventory to include weapons such as the Vintar BC, SGI-5k, and the Tunder S14, along with a wider selection of accessories and the Bulat Armored Suit; I don't think he actually gives you a discount though, at least I haven't noticed any drop in his prices. |
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| | “You're willing to research the most recent developments in the Zone. You have advanced our understanding of the Zone by finding new anomalous formations previously unknown to science.” | 
Pioneer |
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Various new information allowed Professors Hermann and Ozersky to create a new experimental drug, an anabiotic, in the Zone. | | You'll earn this once you have delivered the Altered Wheel to Beard, and the Altered Insulator along with the Anomalous plant to Ozersky. I don't believe there is a perk associated with this achievement; perhaps Hermann may slash his prices, or offer a larger inventory, but I haven't been able to confirm this yet. |
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| | “You've worked with the scientists for so long that you could rightfully be called a research assistant. Everyone in the scientists' bunker considers you one of their own.” | 
Research Assistant |
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Given how useful you are, Professor Hermann is now offering you medical supplies and equipment intended exclusively for bunker personnel at cost price. Novikov is so used to you that he only wants you to pay for parts when performing modifications. |
| | “There are virtually no accessible areas by the center of the Zone that you haven't been to yet. You've been a guest of almost every local anomaly.” | 
Seasoned Stalker |
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Your experience allows you to find rare artifacts more often. | | You'll receive this achievement once you've been to every anomaly in Zaton and Jupiter; these not only include the named areas such as the Claw Anomaly, but also areas with larger concentrations of anomalies - such as the Quarry and the anomaly filled attic south-west of Jupiter Plant (the same attic with the Tools for Fine Work in it). |
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| | “When you get your hands on a piece of info, you always find the right buyer. Obviously, you always have your own profit in mind when selling information to those who need it.” | 
Trafficker of Information |
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Owl the trader has offered you a discount for being his best informer and partner. | | You are given this achievement once you've sold ten pieces of information (such as documents or PDAs) to either Owl, Shulga or Loki. I belive you just need to sell ten in total, to any one of them - so you can sell five to Owl and five to Shulga and will still get the achievement. Owl offers a 15% discount on all items in his inventory once this is achieved. |
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| | “Now Cardan has all the tools he'll ever need. This will allow him to perform new and more complex upgrades.” | 
Weapon Systems Expert |
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Cardan can perform a unique modification, which will allow you to move quickly while wearing an exoskeleton, by installing hydraulic servomotor boosters. | | Bring Cardan all three sets of tools to earn this achievement. It allows Cardan to upgrade the Exoskeleton armor with the Addition of hydraulic boosters into drive devices modification allowing you to run while wearing this armor. |
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- @dawnrazor73