Welcome Aboard Complete Chapter 1 on any difficulty setting Story related, cannot be missed.

Lab Rat Complete Chapter 2 on any difficulty setting Story related, cannot be missed.

All Systems Go Complete Chapter 3 on any difficulty setting Story related, cannot be missed.

Brute Force Kill a Brute Story related, cannot be missed.

Cannon Fodder Complete Chapter 4 on any difficulty setting Story related, cannot be missed.

True Believer Complete Chapter 5 on any difficulty setting Story related, cannot be missed.

Exterminator Kill the Leviathan Story related, cannot be missed.

Greenhouse Effect Complete Chapter 6 on any difficulty setting Story related, cannot be missed.

S.O.S. Complete Chapter 7 on any difficulty setting Story related, cannot be missed.

Get Off My Ship! Kill the Leviathan Remnant Story related, cannot be missed.

Strange Transmissions Complete Chapter 8 on any difficulty setting Story related, cannot be missed.

Wreckage Complete Chapter 9 on any difficulty setting Story related, cannot be missed.

Keeper of the Faith Complete Chapter 10 on any difficulty setting Story related, cannot be missed.

Betrayed Complete Chapter 11 on any difficulty setting Story related, cannot be missed.

Mindless Prey Kill the Hive Mind Story related, cannot be missed.

Exodus Complete Chapter 12 on any difficulty setting Story related, cannot be missed.

Maxed Out Fully upgrade all weapons and equipment Fully upgrade every weapon, your rig, TK module, and stasis module with Power Nodes at benches found throughout the game. You need to collect and/or buy about 200 nodes (they cost 10,000 credits each at the store). The final rig upgrade is purchased from any store on NG+ for 99,000 credits.

Autofire Kill 30 enemies with the Pulse Rifle Kill 30 enemies with this weapon.

Live with the Hot Ones Kill 30 enemies with the Flamethrower Kill 30 enemies with this weapon.

A Cut Above Kill 30 enemies with the Ripper Kill 30 enemies with this weapon.

Pusher Kill 30 enemies with the Force Gun Kill 30 enemies with this weapon.

Eviscerator Kill 30 enemies with the Line Gun Kill 30 enemies with this weapon.

Full Contact Kill 30 enemies with the Contact Beam Kill 30 enemies with this weapon.

Marksman Dismember 50 Limbs Shoot off 50 limbs.

Surgeon Dismember 500 Limbs Shoot off 500 limbs.

Wishbone Rip off a dangling limb using TK Rip off a sword like limb from a necromorph using your TK module. You have to damage the joint without hitting the exposed boney parts. Use a pulse rifle and try to grab the limb using TK when you think you've done enough damage. Don't use the plasma cutter as it will sever the limb instead of damaging it!

Raise The Stakes Pin an enemy After making it to medical, use TK to pick up one of the spears to impale a Necromorph to a wall. This can be done throughout the game.

Freeze Use Stasis on 50 enemies Freeze 50 enemies with Stasis.

Backbreaker Kill 10 enemies with a stomp attack Weaken enemies by shooting them then finish them off with a stomp attack. The best way to get this is to stomp on the little dumplings that come out of the pregnant necromorphs.

Full Arsenal Own every weapon in the game There are 7 weapons and you must own all of them simultaneously (either equipped or in the storage box). I've added the locations to the 'Merchant' achievement below.

Built To Order Install every weapon upgrade Weapon upgrades can be found throughout the game. I've added the locations to the 'Merchant' achievement below. After collecting all upgrade, view each weapon at a bench and the achievement will unlock. NOTE: You must complete the Full Clearance sidequest to get all upgrades!

Merchant Collect all Schematics There are 13 schematic to collect. All can be obtained at any time before the point of no return at Chapter 11 except for the Chapter 9 schematic. Weapon - W Upgrade - U Schematic - S Chapter 2: W: Pulse Rifle - Just after making it to Medical, dropped by the soldier. S: Pulse Rounds - After collecting the Hydrazine and backtracking a bit you'll use zero gravity to descend an elevator shaft. The schematic will be on the table to your left. S: Stasis Pack - After descending the lift while looking for a Shock Pad, It will be in the Main Lab Changing Room to your right. U: Plasma Cutter Cartridge - Found on a bench after blowing up the barricade. Chapter 3: U: Plasma Cutter Heat Accumulator - Unlocked at the store. U: Pulse Rifle Kinetic Autoloader - Unlocked at the store after obtaining the Pulse Rifle. W: Ripper - In the Machine Shop just after the Control Room, at the bottom of the stairs near the body. U: Ripper Ricochet Tracer - Unlocked at the store after obtaining the Ripper. S: Medium Med Pack - Inside an open locker after the Decontamination Room quarantine. W: Flamethrower - After passing the room with the fans, you'll find the Flamethrower on a Necromorph body growing out of the wall. S: Ripper Blades - After going down the first elevator, head inside the open room by the second elevator and it will be on a box. It's the room with the tiny swarm enemies. S: Flamethrower ammo - Inside the Engine Room, next to the Primary Engine panel that you will need to activate. U: Gellified Hydrazine - Unlocked at the store after obtaining the Flamethrower. Chapter 4: S: Intermediate Engineer Rig - Inside the EVA prep room. After beating the brute and activating the elevators, don't follow the main objective and take the opposite elevator instead. You'll fine the EVA Prep room up here. U: P.C.S.I Custom Magazine - After beating the brute, take the elevator to Floor 3. You'll see a locked room in the center of the hall. Walk around to the broken window and use TK to move the boxes next to the door. Shoot the power panel and the door will unlock. The upgrade will be on the shelf in this room. W: Contact Beam - After beating the brute, take the elevator to Floor 2. After a save point, you'll enter a corridor that blows out into space. There is a ruby semiconductor out there in space. Next, continue down the path. On the right side is a room locked with security clearance level 2. Inside will be this weapon. U: Supersymmetry Tether: Unlocked at the store after obtaining the Contact Beam. Chapter 5: S: Line Rack - From Observation Room, instead of going down the elevator to Cryogenics, go through the other door to Zero-G Therapy. It will be in Dr. B. Warwick’s office to your right, sitting on the desk. W: Line Gun - Escape the Hunter and follow the objective to the central room with the save and store. Follow the objective into the emergency room. Inset the power cell to unlock the door. Continue through the door and you'll see a security clearance level 2 door on your right. Inside you'll find this weapon. U: Ionized Capacitor - Unlocked at the store after obtaining the Line Gun. Chapter 6: U: Angled Launcher - After being tasked with injecting Wheezers, this upgrade will be in the first room being sprayed with acid to your left. W: Force Gun - In the Hydroponics Deck hub, during 'Inject Wheezer 01', you'll have to fight a group of enemies in a large open area. In that area, there is a room requiring security clearance level 2. You'll find this weapon inside. U: Supersonic Oscillator - Unlocked at the store after obtaining the Force Gun. S: Force Energy - Inside an alcove in Air Filtration Tower, between the first and second electricity traps you have to slow with stasis. Chapter 7: S: Contact Energy - After going through Deck B: Processing and defeating the Necromorphs, it will be in the locked room. Go to the broken window at the side of the room and shoot the door lock. S: Intermediate Miner Rig - Next to the SOS Beacon. Macroliter Fuel Tank - After getting the SOS Beacon and entering the zero-G area, it will be in the utility room near when you came in from. Chapter 8: U: Photon Energizer - Head back to Medical using the tram. This upgrade is inside the security clearance level 3 room near where you first met the Hunter. U: Portable Heliotron - While still in Medical, go to Floor 1. The upgrade will be in the security clearance level 3 room. S: Oxygen Tank - Head to Mining/Engineering using the tram. Take the south exit and go left to engineering. Proceed to the preparation room, Floor 4, and it will be in the room needing security clearance level 2. U: Weighted Blades - During ‘Deploy The Antenna' main mission, you’ll take a super fast tram to maintenance. It's in the maintenance locker room with the shop. Chapter 9: MISSABLE! S: Large Med Pack - On a desk just inside the entrance of the Infirmary, before the spinning lasers. (This unlocked the 'Merchant' achievement for me) Chapter 10: U: High-Yield Grenades - After obtaining the Master override, take the cargo lift up in the bridge. The upgrade is in the room requiring the override. U: Precision Laser - After obtaining the Master override, head to the locked chest in Hydroponics. U: Diffraction Module - After obtaining the Master override, head to the locked room in Mining. U: Carbon-Fiber Blades - After obtaining the Master override, head to the locked chest in Engineering. S: Advanced Engineering Rig - On a bench inside 'Locker Room and Showers' of Crew Quarters. U: Gravitic Amplifier - When in the Deluxe Quarters to destroy the second tendril, head inside Guest Consultant’s Suites. It will be in the next room. U: High-Pressure Nozzle - Get the battery from Deluxe Quiet Bunks and place it in the circuit breaker by the bathrooms. Enable the left switch to unlock the doors, Head into the Deluxe Quarters and inside will be a Master Override chest containing the upgrade. Chapter 11: U: Suspension Module - Inside a Master Override chest after making it to the Cargo Bay. Go down the lift and shoot the node to destroy the tendril. Proceed straight and the upgrade is in the master override chest guarded by the wall enemy.

Story Teller Collect 75 Logs Cannot be missed. The missable logs are listed below.

Legend Teller Collect 150 Logs Chapter 1: Background Request - In your ship at the start of the game. Sponsored Article - In the waiting room just after getting off your ship. Send Help - After defeating your first enemy. It will be on the wall. Stasis Door - MISSABLE! Pick up the Stasis Module near the door you need to use stasis on. Do not use stasis!. Instead, wait for 30 seconds. Stasis Module Request - In the Tram Tunnel, sitting on a desk in the Tram Repair Room. Autoloader - MISSABLE! Attach the left arm to the tram then attempt to attach the right arm WITHOUT using stasis. Daniels will call you after a few attempts. Repair Invoice - In the Cargo and Baggage Hall, on a chair to the right of the 3 unit circuit breaker. Poker Invitation - In the Cargo and Baggage Hall, in the Maintenance Bay Office where the Data Board key item is. Chapter 2: Patient Harris - In Imaging Diagnostics Wing, divert power at the circuit breaker to the left. It will be in the room you unlock. Calculated Risks - Up the lift after the Patient Harris audio log. In the Observation room. Nicole’s Log - In the Research Wing, after descending the left and defeating the enemies, the log will be in the room around the corner to your left. Anonymized Transcript - In the same room as Nicole’s Log, on the shelf. They Defy Death Itself - Exit the room where you found the 2 previous logs and go left and straight. The log is on the floor in the restroom near a toilet. Marker Discovery - Located in Dr. T. Kyne’s office in the center of the room. Vital Personnel - After encountering the new enemy past the Main Lab Changing Room, on a desk to the right of the lift. Patient Observations - In the Emergency Room after blowing up the barricade. To the left of the security clearance 1 door. Nicole’s Study - Under the “Side Missions” tab - In the Emergency Room, divert power to the left and use your TK module to move the wall. The log is in this room. Rats in the Walls - In ER Hallway A, to the right of the Intensive Care Unit. Colony’s Problems - To the right of the previous log, at the end of the hallway. Autopsy Report - After entering the Morgue, walk around the tables and it is on the shelf, under the light. Chapter 3: It’s Mine - After starting Chapter 3, to the right of the pathway. Growth - After the zero gravity section before going to the Engineering Deck, on the growth just outside the door. Temple’s Log 01 - After taking the elevator down, it is in the following room, to the left of the store. His Own Teeth - In the bathroom to the left of the Ripper weapon. Temple’s Log 2 - After the long tram ride in the refueling room, go left and follow the path. The log is after you make a right turn. Chaos - After going down the lift in the Control Room, it is at the end of the hallway past the bench in the To Centrifuge room. Rig Transcript - Follow the path after the Decontamination Room and it is in front of a hole in the wall. Temple’s Log 3 - In the storage closet to the left of the lift after picking up the flamethrower. Chapter 4: Bridge Attack - Near some computers after making it to the bridge, in the middle left of the room. Eckhardt’s Clearance - After meeting up with Hammond, the log is in the following room to the right. More Time - To the left of the previous log. Captain’s Fate - In the room with the bench after beating the brute. Looking for Elizabeth - After activating the cargo lifts, don’t follow the main objective taking the cargo life down. Instead, take the other cargo lift up and the log is to your left. Unitology Article - Taking the other elevator to Floor 3, It is in the break room to your right. Tracking Infection - Take the elevator to Floor 2, walk until you get to a large open room. Enter the Main Fuses room to your left. Break the fuse box on the wall. The Admin Service Maintenance room is now unlocked. The log is in there. Hold On - To the right of the save station just before the ADS Cannon part. This log is under the ‘Side Missions’ tab. Chapter 5: Mercer’s Volunteer - In the Observation Room after going up the lift past the wall enemy. Dr. Kyne’s Dementia - After encountering the Hunter for the second time in the Emergency room, use the power cell to unlock ER Hallway A. Turn right and the log is towards the bend on your left. Sterile Instruments - In ER Hallway B. Take a right after beating the enemy attached to the wall. The log is at the end of the hallway. Harris’s Choice - After collecting the previous 2 logs, head past the wall enemy into the Intensive Care Unit and the log is on a desk. Mercer’s Journal - Inside Dr. C. Mercer’s office on a desk. The main objective takes you here. Chapter 6: Cross’s Log 1 - On some seats to your right after making it to the Hydroponics Tram Station. Cross’s Log 02 - Inside the West Grow Chamber on the wall opposite where you enter. Corruption - Inside the room with Wheezer 02. Technical Manual - Inside the Annex Control Room above the misfiring thermodynamic purifiers on your way to Wheezer 07. Chapter 7: Miner’s Log - To the right of the bench after the area with the traps. Mining Progress - After going up the life and past the swarm enemies, It is on the table after entering the next room. Dr. Kyne’s Hostage - Next to the locked door before entering the Mineral Processing Area. Unlock the door by shooting the fuse box through the open window. Supervisor’s Choice - Inside the Mineral Processing Control room after clearing the large open area of debris and restoring gravity. Nicole And Dr. Kyne - After getting level 4 clearance and taking the main elevator to floor 4, defeat the wall enemy and use the circuit breaker to power the middle left node. The log is in this room. Thank You, Isaac - Same location as previous log. Chapter 8: Mayday - In the room with Bailey’s Rig, after defeating the 2 wall enemies. The Comms Relay Crew - During "Deploy The Antenna", you’ll take a super fast tram to maintenance. The log is opposite of the bench. Chapter 9: EVERYTHING IN CHAPTER 9 IS MISSABLE! Orders - In the Briefing room past the first fast enemy. Alien Boarders - In the Briefing room past the first fast enemy. Chapter 10: Z-Ball Rules - In the locker room after making it to the crew quarters. Thank You Doctor - To your right in one of the bunks in the room with toxic gas. More Than Sacrifices - While tasked with destroying the second tendril, to your left after entering To Executive Quarters. Planetary Mining - An Investor's Guide - In the center of the room after entering Executive Quarters. Eternal Rest - In the Captain B. Mathius room to the left of Executive Quarters. White's List - In the room to the right of Captain B. Mathius's room. Nexus Organism - Inside the room with Dr. Kyne and the final tendril. Chapter 12: Retrieval Order - Right in front of the store. They Left Us - Inside the Landing Pad Atrium room to the north of the store and bench. Recombination Study - After moving the marker to the final area, remove the 3 tendrils, it is under the 3rd tendril on the walkway. Misc: Chief Engineer’s Log - In the room with Rousseau’s Rig, following the Master Override sidequest.. Requires security clearance level 3. Working Discreetly - In Hydroponics, in the room at the end of the Hunter’s Origins sidequest.

Pack Rat Place 25 items in Storage Place 25 items in storage at any store.

Whole Again Pursue Nicole's investigation Pick up Nicole's Audio Log in her office in the Medical Deck during Chapter 2. Follow the quest objective to unlock this achievement.

Full Clearance Create the Master Security Override Interact with Bridge Security console in the Captain's Nest at the start of Chapter 4. In the room with Hammond after getting security clearance level 2. Follow the quest objectives to unlock this achievement. You have to complete this to unlock all upgrades!

Final Regeneration Discover the Hunter's origins Pick up the Tissue Sample left behind after defeating the Hunter in Cryogenics. Follow the quest objective to unlock this achievement.

Front Toward Enemy Survive the Shooting Gallery MISSABLE! This is obtained during Chapter 9 when visiting the other ship. After disabling the nuke, head into the armory. From here you can enter the shooting gallery. Activate the terminal and kill all enemies to unlock the achievement.

Z-Baller Complete Level 6 in Zero-G Basketball During Chapter 10 you will come to a mini-game on a Zero-G Basketball court. It is located just past the 'Locker Room and Showers' area. Just float in front of the goals and shoot the ball into them.

There's Always Peng! Find the Peng Treasure In Chapter 11, after making it to the Cargo Bay and descending the lift, turn to the left and it will be in the locker right next to the lift.

Set A Benchmark Complete the game on Medium difficulty or above Complete the game on Medium difficulty or above

Untouchable Complete the game in Impossible Mode Complete the game in Impossible Mode. Impossible mode allows one save SLOT but you can save multiple times! If you die you'll also have to restart or you can continue on hard.

Trusted Contractor Complete New Game Plus on any difficulty mode Complete New Game Plus

One Gun Beat the game using only the Plasma Cutter Beat the game using only the Plasma Cutter. You can own and upgrade the others just as long as you don't use them. You can literally use anything to kill enemies except the other guns. You have to manually equip new weapons to use them so you shouldn't have to worry about accidents.

Marked Pick up a Marker fragment for the first time You need to collect 12 Marker fragments in NG+ to unlock the alternate ending. Their locations are listed below in the "Reunion" achievement.

Reunion See the alternative ending on any difficulty mode You need to collect 12 Marker fragments in NG+ to unlock the alternate ending. Chapter 1 Fragment 1 - Maintenance Bay Office - Before collecting the Data Board, there will be a purple glowing object on a shelf. Hit it to knock it down and pick it up. Chapter 2 Fragment 2 - Dr T Kyne office - In her office, before collecting the shock Pad, there is a hidden room obscured by a shelf. Move it with TK. Inside is the fragment. Chapter 3 Fragment 3 - Engine Room - Once you get to the Engine Room, behind where you insert the power cell, will be the fragment. Chapter 4 Fragment 4 - Break Room - After you reactivate the elevators and complete the first objective, you'll head down to floor 3. Once there, look for the Break Room to your right, inside is this fragment. Chapter 5 Fragment 5 - Dr C Mercer office - Inside her office, sitting on the desk. The main quest objective will take you here. Fragment 6 - Cryogenics - After picking up the previous fragment, head to Cryogenics. It will be sitting on top of the chamber you use to freeze the Hunter. Chapter 6 Fragment 7 - East Grow Chamber - After injecting Wheeze 06, on that same floor, on the opposite side of the room, you'll see the purple glow of the marker fragment. Use TK to grab it. Chapter 7 Fragment 8 - Mineral Samples - Once you activate the Launch Tubes, set your objective to "Find the Admin RIG" and complete this objective. As soon as you get the Admin RIG you’ll be upgraded to Security Clearance Level 3. Before you start following the blue tracker line to the SOS Beacon, check the map for a room called Mineral Samples. The fragment will be on a shelf in that room. Chapter 8 Fragment 9 - Communications Hub - During "Fix the Comms Array" objective, while in zero-G, face the Communication Control screen and look to the left. You’ll see the fragment in a little hole inside the fleshy growth in the wall. Chapter 10 Fragment 10 - Deluxe Quarters - After destroying the first tendril up the lift, clear the quarantine room. Then grab the power source and power the Circuit Breaker. Use this to turn on the doors, then head back to the Deluxe Quarters you came from. The door to the room "Deluxe Shift Bunks" is now open and the fragment is inside. Fragment 11 - Inquiry Desks - In the room with D. Kyne after the cutscene. As soon as you enter you'll see the purple glow behind a wine bottle. Chapter 11 Fragment 12 - Cargo Bay - During the objective "Engage the Cargo Crane". head to the south-east corner of the Cargo Bay. The Fragment sitting on a shelf. Pick up this fragment and complete the area. DO NOT PROGRESS, there is one more step. Go to a tram station and go to the Crew Quarters. From here, go to the Executive Quarters. From the tram, go through the door marked ‘To Crew Deck’ and and then through ‘Common Area’. Go through the door marked ‘Central Nexus’ next. Take the elevator to Floor 1. Now go through the other Central Nexus door, walk straight ahead and as soon as you step through the broken window turn right and go up the Cargo Lift. on the opposite side from where you are will be a door marked ‘To Executive Quarters’. Once you’re in there, head through a couple more doors until you reach a large room. Enter the room marked 'Captain B Mathius' to your left. Place the Fragments on the table and you’ll get some dialogue. You are now able to complete the game.