This guide will attend to your completionist needs :)

It provides

• an overview of where to hunt for each and every achievement,
  
• videos with all achievements for each chapter, and
  
• detailed explanations on how to get every single achievement.

If you find any part of this guide unsatisfactory or incorrect please comment below. And feel free to comment with anything else, too. :)

Discaimer: The videos spoil the entire game! There will be no mystery left ... except for the back story of Ez'rat Qin ;)

The following table lists all achievements in alphabetical order and indicates

• with a '+' which chapter(s) they require mandatory actions in, and
  
• with a '/' which chapters they require alternative actions in.

I went through the "trouble" of recording achievement run videos for each chapter. Below each video you can find links with time stamps that will take you directly to the part of the video you are interested in. Obviously this does not work for "collectables" achievements.

• Alchoholic I
  
• Open Sesame: link to video

• Alchoholic II
  
• Cleaning Lady: link to video
  
• Flower: link to video
  
• Green Thumb: link to video
  
• Herbivore II
  
• Light my fire II
  
• The Sun: link to video
  
• Wet Warden: link to video

• Alchoholic III
  
• Clever, girl!: link to video
  
• Herbivore III
  
• Light my fire III
  
• Moonshine: link to video
  
• No Stone Left Unturned: link to video
  
• Sign of the Hunter: link to video
  
• The Hammer: link to video
  
• The Valley Ez'rat Qin Discovered: link to video
  
• The Vial of Oth Makail: link to video
  
• The Wheel: link to video
  
• Turn on the lights: link to video

• Alchoholic IV
  
• Environmentally Concious: link to video
  
• Herbivore IV
  
• Investigated the North: link to video
  
• Light my fire IV

• Alchoholic V
  
• Awake my people!: link to video
  
• Beyond the Valley: link to video
  
• Discovered the story of the past
  
• Herbalist
  
• Herbivore V
  
• Light my fire V
  
• Lightbringer
  
• Substali
  
• Thank you, Warden
  
• The Leaf: link to video
  
• The Skull: link to video
  
• Ultimate Survival
  
• Warden of Ezrat Qin

Consumed all the substance flasks in chapter I, II, III, IV, V

Where: One achievement in each chapter.
What: Interact with all the small vial-refilling flasks that are available in the corresponding chapter.

Here is the amount of flasks you need to consume for each chapter. Note that the large refill flasks do not count towards this achievement.

• Chapter 1: 18
  
• Chapter 2: 32
  
• Chapter 3: 43
  
• Chapter 4: 29
  
• Chapter 5: 20

The following map indicates the position of all flasks on the in-game map. Please note that

• positions for chapters 1, 2 and 5 may be difficult to read because locations are in different heights, e.g. the descent/ascent in chapter 1 and the tree houses in chapter 2;
  
• the 6 flasks in the crystal mines of chapter 3 are not displayed with respect to their position because the map does not depict the layout of the mines; 1 flasks is hidden in the basement!
  
• the cathedral with the amber beds that you first access in chapter 3 only contains 1 flask when you return in chapter 5;
  
• the 9 remaining flasks of chapter 5 are in the area behind the Skull door of the amber bed cathedral: 1 in the 'labyrinth', 2 in the room with the Memory Marker, and the remaining 6 flasks are in the laboratory of the Warden of Death.

We shall build a new and thriving civilization

Where: Chapter 5
What: Choose the left exit towards the end of chapter 5 and activate the mechanism.

She left the shore and sailed away

Where: Chapter 5
What: Choose the right exit at the end of chapter 5, follow the path, and use the boat.

Rid the area of fumes

Where: Chapter 2, 3, 4, alternatively
What: Close one of the smelters in chapters 2, 3, or 4.

Just dare to go into the lava field and close the smelter with your mouse or gamepad. Each smelter has more than enough flowers around them to heal yourself again.

This is the smelter in chapter 2 where you can first get this achievement:

Solved the Water basins puzzle

Where: Chapter 3.
What: Fill the large rear water basin with four units of liquid.

The Water basins puzzle is indicated on the map with the achievment symbol. It is in the east of the valley and looks like this:

Use these steps when all liquid is in the rear basin to fill the rear basin with only four units:

1. 8 -> 5
   
2. 5 -> 3
   
3. 3 -> 8
   
4. 5 -> 3
   
5. 8 -> 5
   
6. 5 -> 3
   
7. 3 -> 8

Activated all of the ancient memory markers

Where: Chapters 1, 2, 3, and 5.
What: Activate all nine Memory Markers throughout the game. Memory Markers are the pedestals that display story parts when equipped with the vial.

It should be noted that, as far as I can tell, a Memory Marker only counts as activated once the animation sequence has been played all through to the end. You basically cannot miss them but for completeness sake, these are screenshots of all Memory Markers:

Stopped the polution of the past

Where: Chapters 2, 3, and 4
What: Close all five active smelters in the Ez'rat Qin.

There is
- 1 smelter in chapter 2,
- 3 smelters in chapter 3, and
- 1 smelter in chapter 4.
Their location is indicated on the map with the symbol on the left.

Used the vial to bring back a little life in the world

Where: Chapter 2, 3, 4, or 5
What: Use your vial to grow a plant in one of the last four chapters.

Here's a screenshot of the first flower pot that allows you to grow a flower in chapter 2:

Used the vial to grow structures

Where: Chapter 2
What: Mandatory achievement when you grow vines to cross the broken bridge.

Here's the screenshot of the bridge you need to "fix":

Eat your greens

Where: Chapters 2, 3, 4, and 5
What: Get the achievements Herbivore II - V.

The Herbivore achievements do not have to be aquired in one and the same playthrough of the game for the Herbalist achievement to unlock.

Consumed all the flowers in chapter II, III, IV, V

Where: One achievement in each chapter except chapter 1.
What: Interact with all healing flowers that are available in the corresponding chapter.

Here is the amount of flowers you need to consume for each chapter. On that note, the large rectangular flower pots, which contain three flowers, count as three flowers below.

• Chapter 2: 13
  
• Chapter 3: 49
  
• Chapter 4: 67
  
• Chapter 5: 10

The following map indicates the position of all flowers on the in-game map. Please note that

• large flower pots with three flowers are depicted with a star symbol;
  
• the 5 flowers in the crystal mines of chapter 3 are not displayed with respect to their position because the map does not depict the layout of the mines;
  
• positions for chapter 5 may be difficult to read because locations are in different heights;
  
• the 3 remaining flowers of chapter 5 are in the area behind the Skull door of the amber bed cathedral: 1 in the entry area, 1 in the 'labyrinth', and the remaining 1 is in the laboratory of the Warden of Death.

Traversed north to find the answers

Where: Chapter 4
What: Find the hidden cave north of the lost village.

Head north from the smelter in chapter 4 to find a hidden cave. It is approximately there:

Turned on all the lamps and braziers in chapter II, III, IV, V

Where: One achievement in each chapter except chapter 1.
What: Light all lamps and braziers in the corresponding chapter.

Here is the amount of lamps/braziers you need to light for each chapter.

• Chapter 2: 39
  
• Chapter 3: 54
  
• Chapter 4: 5
  
• Chapter 5:

The following map indicates the position of all lamps on the in-game map. Please note that

• positions for chapter 2 may be difficult to read because locations are in different heights;
  
• all 15 braziers in chapter 5 are situated in the area behind the Skull door of the amber bed cathedral - make sure to light all of them before you grab the sigil of the Hunter from the dead Warden of Death.

Brought Light to the Valley

Where: Chapters 2, 3, 4, and 5
What: Get the achievements Light my fire II - V.

The Light my fire achievements do not have to be aquired in one and the same playthrough of the game for the Lightbringer achievement to unlock.

It can only be seen at night

Where: Chapter 3
What: Grab the glowing sphere next to the altar and place it on the altar while the altar is lit by the moon.

The position of this "puzzle" is indicated on the map with the symbol on the left.


Note that the moon has to light the altar directly, i.e. shine through the gap in the trees. Here is a screenshot of approximately the first time in the night when the altar is lit:

Solved the Stone Pillars

Where: Chapter 3
What: Adjust each of the five pillars so that there is a continuous line from the top of the pillar to the bottom amber line that moves towards the center of the puzzle area.

This puzzle is easier to solve than it looks because the four outer pillars all have the same line patterns and shapes. Here is a screenshot of how the top-to-bottom connection on each of those four pillars has to look:

After setting the outer four pillars, simply turn the middle pillar until it snaps into place and the puzzle is solved.

Used a projection to open a door

Where: Chapter 1
What: Mandatory achievement for unlocking the exit door of chapter 1.

In the depths I found each and every one

Where: Chapter 3
What: Collect all ten pearls in and around the pond and place them on the altar in the center of the pond.

The location of this puzzle is indicated on the map with the symbol on the left.

Simply find all ten pearls scattered in and around the pond. They are all easily visible from the center isle of the pond except for one that is hidden behind the stone wall on the isle.

Addicted to the wrongdoings of the past

Where: Chapters 1, 2, 3, 4, and 5
What: Get the achievements Achoholic I - V.

The Achoholic achievements do not have to be aquired in one and the same playthrough of the game for the Substali achievement to unlock.

Thank you for playing!

Where: Chapter 5 (actually chapter 6)
What: Watch the entire credits at the end of the game.

Note who is mentioned as an MVP at the end ;)

Solved the Crystal Mine Puzzle

Where: Chapter 3
What: Mandatory achievement for picking up the Hammer sigil in the chrystal mines west of the valley.

In order to pick up the Hammer sigil you have to solve the Crystal Mine puzzle. You can watch the solution here: YouTube video.

Solved the Soil Puzzle

Where: Chapter 5
What: Mandatory achievement for picking up the Leaf sigil in the center of the gardening section.

In order to pick up the Leaf sigil you have to solve the Soil puzzle. You can watch the solution here: YouTube video.

Solved the Eternal Darkness Puzzle

Where: Chapter 5
What: Mandatory achievement for picking up the Fish sigil that is released by the dead Warden of Death.

Solved the Life Puzzle

Where: Chapter 2
What: Mandatory achievement for picking up the Sun sigil towards the end of chapter 2.

In order to pick up the Sun emblem you have to solve the Life puzzle. You can watch the solution here: YouTube video.

Completed the map of Ez’rat Qin

Where: Chapter 3
What: Pick up the map of Ez'rat Qin in the north of the valley.

The map is located right next to the entrance of the valley in chapter 3 after you pass through the tunnel that has to be opened with the Wheel projection. You can barely miss it.

His death will be remembered and honored by your deeds

Where: Chapter 3
What: Pick up the blue vial that is locked behind the glass door.

The glass door behind which you can find the vial of Oth Makail is indicated on the map with a vial symbol. To open the glass door you need to find all 18 shards in chapter 3 to complete the picture on the door. If you're having trouble locating all the shards, you can resort to this guide that I made:
http://gtm.you1.cn/sharedfiles/filedetails/?id=1085715442

Solved the Water Puzzle

Where: Chapter 3
What: Mandatory achievement for picking up the Wheel sigil in the center of the large water basin in the east of the valley.

In order to pick up the Wheel emblem you have to solve the Water puzzle. You can watch the solution here: YouTube video.

Solved the Lamp Puzzle

Where: Chapter 3
What: Light up all eight lamps.

The location of the Lights puzzle is indicated on the map with the symbol of this achievement. This is what the Lights puzzle looks like:


To light all eight lamps, start with any lamp and then light the lamp in either direction with the following position:

1. -> 3 -> 3: all but one lamp are lit now.
   
2. -> 1 -> 1 -> 1 -> 1 -> 1 -> 1 -> 1: only two lamps are lit now.
   
3. -> 3 -> 3: all lamps are lit now.

Did not succumb to the darkness of the world

Where: Chapters 3 and 4
What: Do not get caught even once by the black apparition that guards the forest in chapter 3 and the lost village in chapter 4.

Note that the achievement will only unlock at the end of the game if you managed to not get caught for an entire game session. Therefore,

• you cannot use the Chapters function when trying to unlock this achievement, and
  
• it is possible to go back to a previous save game if you did get caught.

In case you have not noticed yet, you can always run from your persecutor once he has locked on to you. The safest way to get rid of him is by entering an area that is illuminated by stone steles that emit a mysterious blue light. You can find them in chapter 3 around the monument to the west of the market. Chapter 4 has five such locations as indicated in the map.

To "activate" these steles simply light up the blue minerals in the center of each such area.

Also, there are other areas in chapter 3 that the black apparition cannot enter: everything north of the market, and everything east of the bridges. So if you do not have enough juice to light the steles, just try and get to those ares.

You are a true protector of Ez'rat Qin

Where: Chapters 1, 2, 3, 4, and 5
What: Get all other achievements of the game.

Swept away by the waterfall

Where: Chapter 2 or 3
What: Jump into the river and get swept away down a waterfall.

The first location to get this achievement is right at the start of chapter 2 when you exit the cave. Jump into the water here:

Make sure to save before trying to unlock this achievement ;)