This walkthrough provides the achievements in sequential order.

Here's a quicker sequential guide:

• Report everything with the walkie-talkie
  
• At home, get the bracelet from the washing machine and return it to Mia
  
• At the Parking Lot, take quarters from the shack then buy a soda
  
• At the Visitor Center, report the broken toilet
  
• At the Boat Cruises building, exit where Unstable Ground sign is. Collect journal by tree
  
• At the Campsite, throw away the soda cans
  
• At the Small Cabin, break into it with the axe rather than finding the key
  
• After falling, report the dead deer near the large rocks with symbols on them
  
• Take the compass after killing your first enemy

At Blackwood Camp:

• Stare at bear statue at Blackwood for five seconds
  
• Return compass to back-left tent in crime scene
  
• Move sleeping bag in that same tent
  
• Roast Marshmallow and eat on the campfire by tents
  
• After meeting Fred, locate the hidden pictures in the first room upstairs in large cabin
  
• In final cave when picking up colored spools, inspect picture on small gravestone

⤷ Walk into Mia's bedroom
⤷ Save the game
⤷ Speak with Mia and allow her to visit her friend to unlock:



⤷ Load the game
⤷ Speak with Mia and disallow her to unlock:



⤷ Go downstairs
⤷ Enter the garage
⤷ Take bracelet from the washer
⤷ Go upstairs to Mia
⤷ Give Mia the bracelet to unlock:



Answer the phone to proceed.

For the Talkative achievement, we must report 50 objects through the walkie.
Press TAB to pull the walkie out, then interact with objects with walkie symbol to report.

⤷ Enter the Ranger Building
⤷ Open drawer and take quarters

(1/50) Report: Box of Lightbulbs

⤷ Exit the Ranger Building
⤷ Approach the Vending Machine
⤷ Insert quarter, click on any soda, then pick it up to unlock:



(2/50) Report: Broken Payphone
(3/50) Report: Visitor's Center Sign
(4/50) Report: Truck Trunk Bag
(5/50) Report: Harvey's Car
(6/50) Report: Harvey's Cough Drops
(7/50) Report: Harvey's Moldy Backpack
(8/50) Report: Harvey's Box
(9/50) Report: Harvey's Satellite

Hop the rail and follow the trail.

 
⤷ Enter Visitor Center Parking Lot
⤷ Navigate to the left gate

(10/50) REPORT: Arrival
(11/50) REPORT: Park Gate

⤷ Enter Visitor Center Building
⤷ Enter first bathroom on the right
⤷ Report Dirty Toilet to unlock:



(12/50) REPORT: Dirty Toilet
(13/50) REPORT: Park Map
(14/50) REPORT: Missing Boy Poster
(15/50) REPORT: News Clipping on Desk

⤷ Obtain gate key from side room
⤷ Exit Visitor Center
⤷ Unlock gate and follow trail

Follow the trail until you reach the Boat Cruises sign.

 
⤷ Follow left trail to the boathouse

(16/50) REPORT: Boats

⤷ Enter unauthorized room

(17/50) REPORT: Muddy Window Frame
(18/50) REPORT: Hippie Guitar
(19/50) REPORT: Family Photos in Drawer
(20/50) REPORT: Muddy Jacket
(21/50) REPORT: Broken Walkie

⤷ Exit the boathouse
⤷ Follow wooden walkway after "Unstable Ground" sign
⤷ Follow path to a large tree
⤷ Inspect the journal to obtain:



⤷ Backtrack to the Boat Cruises sign

Follow the path past the sign stating "Granite Trail" and "Blackwood Trail"

 
⤷ Follow path until reaching stack of rocks on your right
⤷ Proceed past rocks to the downed tree

(22/50) REPORT: Fallen Tree

⤷ Backtrack to the stacked rocks
⤷ Proceed to the right, down the trail
⤷ Jump from the ledge
⤷ Hug the right of the area towards a stream
⤷ Follow the stream to the right

(23/50) REPORT: Half-Buried Sign Post

⤷ Backtrack from sign
⤷ Crawl under rock to proceed forward

(24/50) REPORT: Tree Carvings

⤷ Continue forward
⤷ Pass through two large bushes
⤷ Caw-Caw!

Move into the campsite.

 
⤷ Enter the campsite

(25/50) REPORT: Ranger Shed
(26/50) REPORT: Backpack
(27/50) REPORT: Soda Can (on tree stump)
(28/50) REPORT: Soda Cans
(29/50) REPORT: Boombox
(30/50) REPORT: Footprints by Gate

⤷ Detour past the campsite and to the left

(31/50) REPORT: Safety Sign

⤷ Backtrack to the campsite
⤷ Take soda cans and drop into trash to unlock:



⤷ Follow path to the right of campsite

(32/50) REPORT: Blocked Trail

⤷ Continue right past the blocked trail

(33/50) REPORT: Overgrown Trail

⤷ Backtrack to campsite
⤷ Tune into the frequency

(34/50) REPORT: Boombox
(35/50) REPORT: Incident (after the freak encounter)

⤷ Enter the Ranger Shed. The door is unlocked now.
⤷ Grab the axe
⤷ Proceed back to overgrown trail
⤷ Use axe on brush to unlock:

 
⤷ Continue forward until finding a sign
⤷ Follow the left-most path to Sentinel's Lookout
⤷ Enter the gazebo on the right

(37/50) REPORT: View

⤷ Follow the downward path left of the gazebo
⤷ You will hear chopping wood

(38/50) REPORT: Distant Sound

⤷ Continue forward until finding a sign (Granite Ridge/Blackwood Camp)
⤷ Follow the left-most path

(39/50) REPORT: Broken Bridge

⤷ Backtrack to the same sign
⤷ Follow the right-most path

(40/50) REPORT: Bloody Rock

⤷ Continue past the bloody rock
⤷ Approach the small cabin

(41/50) REPORT: Locked Door
(42/50) REPORT: Power Generator (Behind Cabin)

⤷ Break the window with your axe to obtain:



⤷ Enter the cabin
⤷ Exhaust all interactions
⤷ After another freak encounter:

(43/50) REPORT: Suspicious Writing
(44/50) REPORT: Incident

⤷ Exit the cabin and backtrack the same trail
⤷ Follow the sounds of chopping wood
⤷ You'll find a man

After taking a nasty thirty foot drop, you'll obtain:

 
⤷ Hugging the right, proceed forward
⤷ Climb up a couple ledges and continue forward
⤷ Enter an open area with large rocks

(45/50) REPORT: Rock Symbols

⤷ Face the white eye on the rock
⤷ Turn 180 degrees
⤷ Move forward and hug the right side of the area
⤷ You will locate a small area with a dead deer
⤷ Report it to obtain:



(46/50) REPORT: Dead Deer

⤷ Continue past the deer and forward on the trail
⤷ Drop down two ledges
⤷ You'll find footprints

(47/50) REPORT: Inhuman Footprints

⤷ Continue towards brush nearby
⤷ Pass under Area Closed sign
⤷ Move towards military tent
⤷ Pick up bolt cutters

(48/50) REPORT: Area Closed Sign
(49/50) REPORT: Strange Note (by unique tree nearby)
(50/50) REPORT: Military Tent

By this point, you should have obtained:



You may have achieved this before the 50th report too. If you have not achieved this, continue to hold TAB through the rest of the story and report everything you find. If you have followed the guide up until this point, you should be very close.

⤷ Proceed into the cave

 
⤷ Enter the cave
⤷ Move left past the ritual area to water pool
⤷ Pick up the compass
⤷ Backtrack to ritual site
⤷ Tune frequency for gate unlock
⤷ Enter gate
⤷ Down makeshift elevator
⤷ Place compass into stone pillar outside

An enemy will appear. Tune frequency to red line to defeat. You will obtain:



⤷ TAKE THE COMPASS FROM THE PILLAR
⤷ Follow the downward path from the pillar towards a gate
⤷ Cut through the fence
⤷ Follow rightmost path to Blackwood Camp

 
⤷ Enter Blackwood to obtain:



⤷ Stare at the bear statute for 5 seconds to obtain:



⤷ Move further into Blackwood
⤷ Pass under crime scene tape
⤷ Approach the back-left tent
⤷ Open the small metal box and place the compass back to obtain:



⤷ Move the sleeping bag in that same tent to obtain:



⤷ Take matches from metal box
⤷ Approach campfire on the right
⤷ Save the game
⤷ Light fire with matches
⤷ Take marshmallow stick
⤷ Roast marshmallow for five seconds
⤷ Eat the marshmallow to obtain:



⤷ Approach the back-right tent
⤷ Take tape
⤷ Enter the large cabin in the center
⤷ Move right into dining room
⤷ Inspect letter and food

The objective will then state to follow the sound

⤷ Go upstairs (the lights will turn off)
⤷ Exit cabin and follow downward path towards small boathouse
⤷ Enter boathouse
⤷ Take pliers on the bench
⤷ Return back to large cabin
⤷ Circle around to the back
⤷ Repair the cut wire

A cutscene will then occur.

⤷ Follow Fred inside
⤷ Exhaust dialogue
⤷ Grab key from desk
⤷ Go upstairs
⤷ Enter first door
⤷ Turn cabinet
⤷ Unlock hidden compartment
⤷ View both photos
⤷ Exit large cabin

We are now going to charge our walkie-talkie!

⤷ Moving away from the large cabin, hug the right part of this area
⤷ Enter Cabin #3
⤷ Set walkie on charger
⤷ Play logs until the dialogue is exhausted
⤷ Grab walkie for a cutscene

 
⤷ Walk towards the beam as instructed
⤷ Follow path past bridge and walk up stone stairs
⤷ Climb up two ledges
⤷ Continue toward the beam

You'll soon be blocked by a sound barrier.

⤷ Use radio frequency to destroy it
⤷ Continue forward to beam
⤷ Use radio frequency multiple times on the multiple enemies

After the battle, the brush behind the beam will open.

⤷ Follow the path into the quarry
⤷ Walk past the quarry until you begin following blood

 
⤷ Follow the bloody path to the small shack
⤷ Enter the shack
⤷ Grab two metal latches
⤷ Grab two support beams
⤷ Exit the shack

⤷ Cut through the brush nearby to reveal a dead body
⤷ Open the cardboard box
⤷ Grab signal booster
⤷ Open hand on dead body
⤷ Grab unidentified key

⤷ Follow trail up towards the Ranger Tower
⤷ Report the radio inside
⤷ Walk outside to find antenna
⤷ Fix base
⤷ Add signal booster to obtain:



⤷ Use radio speaker in tower
⤷ Exhaust dialogue
⤷ Exit tower only to be transported back
⤷ Use frequency on sound wall to obtain:



You may have gotten this achievement back at the campsite too.

⤷ Exit tower again and backtrack
⤷ Cross the small river and jump down ledges to the cave
⤷ Enter the cave

 
⤷ Enter cave
⤷ Follow path into large ritual room with chair

You'll be prompted to find three colored coils. You only need to worry about one thing:

⤷ When entering gravesite for one coil
⤷ Review photograph on gravestone to obtain:



⤷ Return to large ritual room
⤷ Plug in coils
⤷ Defeat enemies
⤷ Watch cutscene to obtain: