Achievements are split into 3 types:
- story (6 achievements, 0 missable)
- puzzles (5 achievements, 1 missable)
- documents (1 achievement, 0 missable)

The only achievement that can be missed is Sharp Eye (for completing a hidden object mini-game without a mistake), as there are a limited of HOPs in the game.

Survivor - Reach a panorama location
Unlocks after finishing the first area and you move onto the next.


Keeper - Restore a totem
About two-thirds through the game, this will unlock after finishing a HOP where you are tasked with finding six Totem Fragments.

Jack-Of-All-Trades - Crafted all constructions.
Unlocks after crafting all three SOS out of rocks.


Tribal - Upgrade camp to the last state
Unlocks upgrading your camp for the third time, where you finally add a proper door, lamp and a ladder on the side.

Archeologist - Open temple door
Near the end of the game. Unlocks after finishing the puzzle minigame to open the temple.


Explorer - Explore all locations
Final location is inside the temple. Unlocks as soon as you go inside.

Sharp Eye - Complete hidden object mini-game without misshitting
Self explanatory. While technically this can be missed, each HOP is only six objects, and you get many chances to do this, so it's unlikely you'll actually miss this.

Unstoppable - Run the Flight mini-game more than ten times at once
After finding your mobile phone near the beginning of the game, use it and play the Flappy Bird clone ten times without quitting. You can just kill yourself at the very start.

Chef - Get more 3000 scores in Fishtrix mini-game
Possibly the hardest achievement in the game. You need to score 3000 or more on the match-3/Tetris hybrid game.
Use your bonus power as much as possible. Press space to clear all the blocks of the type displayed on the lower left from play area. Also, always let the blocks fall to the bottom by themselves as it gives more time for the bonus to regenerate.
You can make the game easier by playing in window mode and alt+tabbing to another window which will pause the game and give you time to think.
It's a very luck dependent game. After ~2500 points, I was placing just blocks wherever there was space and relying heavily on the bonus power.
You can retry this puzzle as many times as needed by visiting the cauldron location on the map.

Fisher - Catch max amount of fishes
Harpoon 5 fish in the fishing minigame before you run out of air. You can retry this puzzle as many times as needed by visiting the pier or fish location on the map.

Engineer - Win Crystals mini-game without the shifting crystals
Final minigame after finishing the HOP inside the temple. You need to connect the same coloured crystals without any overlap, and you must do so without making a mistake.
From what I've seen there's more than one variation to this puzzle, but you can see my solution below.

The ending scene plays after completing this puzzle, but you can replay this puzzle by continuing your game and visiting the temple location again.

Collector - Collect all documents
Documents can be picked up by visiting locations while there isn't an active HOP in them. They'll be marked with a blue aura when you enter the area.
I didn't think to make a full list of their locations, but none of them can be missed as you can revisit areas at any time.
There are 13 photos and 16 notes in total, including the ones you pick up as part of the story.
The earliest you can get this achievement is after visiting the Temple Entrance for the first time, as there's a photo and note on that screen.