Complete the indicated task to unlock the achievement.

Achievement	How to unlock
A Dangerous Road	Complete the game on "Medium" or higher difficulty.
A Fast Swim	After activating the sprinklers, exit the pool in "The Fire Station" in under 7:00 minutes.
A Jump from the Window	Collect the plank and leave the house garden in "The Forest" in under 3:30 minutes.
A Peaceful Path	Complete the game on "Easy" or higher difficulty.
A Quick Breath	Reach the boat in "The Fire Station" in under 2:15 minutes.
A Run Through the Bushes	Complete the area where Mark died in "The Forest" in under 1:45 minutes.
A Safe Path	Completely empty twenty sandbags.
An Arduous Journey	Complete the game on "Hard" difficulty.
Art Critic	Unlock all Concept Art in the Extra Menu.
Art Lover	Unlock your first Concept Art in the Extra Menu.
Assiduous Reader	Collect all the documents scattered along your journey.
Attention	Find the diner's door combination on the first try in "The Harbor".
Casual Reader	Collect all the documents scattered in an area.
Changing	Have the monster destroy three screens (over the tutorial ones) in "The Harbor" in the same attempt.
Chasing Away	Scare away all the flocks of birds in "The Trainwreck".
Code Breaker	Open all briefcases along your journey.
Collector	Collect ten toys.
Combinations with Repetition	Open your first briefcase.
Completionist	Collect all toys along your journey.
Disappear Among the Caravans	Leave the parking lot at "The Campsite" in under 7:00 minutes.
Distracted Child	Collect a toy.
Fast As a Train	Cross the train over the bridge in "The Trainwreck" in under 6:30 minutes.
Flash in the Dark	Use fifteen flares.
Hitting	Complete "The Chase" without dying.
Hold your Breath	Successfully resist an asthma attack.
In and Out in a Second	Turn the power back on and leave the warehouse in "The Harbor" in under 3:15 minutes.
Inhale, Exhale	Use thirty inhalers.
Lighting	Light all the candles in the hospital chapel.
Lightning Between the Valves	Deactivate the pumps and reach the sewer in "The Pump Station" in under 7:00 minutes.
Like Wind on Water	Leave the shipyard in "The Harbor" in under 2:15 minutes.
Music Single	Collect a mixtape.
Ordering	Drop the two buckets from the porch in "The Campsite".
Over There	Break 25 bottles.
Passionate	Unlock your first 3D Model in the Extra Menu.
Patron	Unlock all 3D Models in the Extra Menu.
Playlist	Collect all mixtapes along your journey.
Projecting	Look at all the children's drawings in the basement of "The Ranch".
Prologue	Find Martin.
Remembering	Throw a bottle at each of the four large animal statues in the garden of the forest house.
Resolving	Find the combination to open the briefcase in "The Lake House".
Seeing	Turn on the pool lights in "The Fire Station".
The Campsite	Reach the road beyond the campsite.
The Chase	Survive until you reach the hospital.
The Fire Station	Get on the boat and escape.
The Forest	Go through the forest.
The Harbor	Reach the dock.
The Hospital	Find your way out of the hospital.
The Lake House	Witness the Arrival.
The Pump Station	Find a way out of the pump station.
The Ranch	Leave the ranch.
The Trainwreck	Cross the river through the trainwreck.
Too Much Noise	Your first death due to making too much noise.