On Thin Ice Walkthrough Chapter 1: Complete Puzzle Guide & Solutions

Solve every riddle, code, and keypad in Haiku Games' thriller with this step-by-step On Thin Ice walkthrough Chapter 1 guide.

Detectives Kate Gray and Murphy return for another pulse-pounding investigation, but their quiet evening quickly spirals out of control when a police precinct ransomware attack coincides with a brutal winter blizzard. Welcome to the definitive on thin ice walkthrough chapter 1 guide, designed to lead you through every frozen obstacle, locked container, and intricate cipher without wasting your valuable in-game stars. If you find yourself stuck searching for hidden items or decrypting body tattoos, this comprehensive on thin ice walkthrough chapter 1 provides the exact answers and tactical insights you need to progress smoothly.

Whether you are an experienced player of detective adventures or stepping into Kate Gray's shoes for the first time, Chapter 1 sets a dark, urgent tone. You will need to inspect crime scenes meticulously, reconstruct tools out in the snow, slide ice blocks, and operate cyber tools to crack a mysterious informant's digital trail.

Chapter 1 Overview: Key Puzzles and Codes

Before diving into each specific scene, use this quick reference table to check solutions if you simply need a fast code confirmation.

Location	Puzzle Objective	Required Action or Key Items	Solution / Passcode
Police Station	Unlock Kate's terminal	Place Chip Reader on desk; read bold digits	63849
Cabin Yard	Clear deep snow	Attach Wheel, Nozzle, and Fuel to Snowblower	Use running blower on drifts
Cabin Entrance	Door keypad code	Arrange metal numbers on the signpost	40827
Inside Cabin	Open Hacksaw's hidden safe	Count tattoos on body matching the symbol strip	9416
Backyard	Cross frozen gap	Align numbered ice blocks via sliding puzzle	Solve Ice Stairway
Backyard	Unlock rusty tool case	Treat with cleaning oil; open with small key	Screwdriver & Triangles
Cabin Cabinet	Solve Triangulate puzzle	Direct electrical charge across rotating nodes	Retrieve Photo
Hidden Wall Safe	Retrieve informant hard drive	Mount Letter, Chart, and Photo on pinboard	Chapter 1 Clear

Step 1: The Police Station Ransomware Attack

The chapter opens at the station, where disaster interrupts Kate and Murphy's plans. A sophisticated ransomware assault has locked down the department's network, and Kate's workspace is cordoned off as a digital crime scene.

To clear Kate's terminal:

Examine the storage box on the floor near the crime scene tape to pick up the Chip Reader.
Place the chip reader directly onto Kate's work desk next to the infected computer monitor.
Observe the screen prompts requesting a 5-digit security override. Inspect the physical casing of the chip reader itself to spot five bold numbers printed along its hardware label: 63849.
Type 63849 into the computer terminal.

Solving this terminal puzzle triggers an urgent dispatch: Murphy's street informant, known as Hacksaw, has been caught in a shootout at a secluded cabin and is unresponsive. Kate and Murphy immediately hit the road into an escalating blizzard.

Step 2: Infiltrating Hacksaw's Cabin Exterior

Upon arriving at the remote cabin, heavy snowdrifts block the pathways and the entrance door is protected by an electronic security panel. To enter the hideout, you must repair an abandoned snowblower and decode the entrance plaque. Following this on thin ice walkthrough chapter 1 sequence prevents unnecessary backtracking through the cold.

[Snowblower Repair]
Wheel + Nozzle + Fuel Tank ---> Assembled Snowblower ---> Clear Snowdrifts ---> Collect Metal Numbers

Snowblower Assembly

Scan the front yard for mechanical parts scattered by the storm:

Pick up the heavy Wheel resting against the wooden porch railing.
Collect the green Fuel Can sitting near the driveway fence.
Grab the loose Blower Nozzle lying near the frozen bushes.

Combine the wheel, nozzle, and fuel can with the broken snowblower sitting in the yard. Tap the running machine to blow away the snowdrifts, uncovering discarded debris and several loose Metal Numbers.

Cabin Door Keypad Solution

After clearing the snow, gather the metal numbers and look at the wooden plaque posted to the right of the front entrance. Place your collected numbers onto the pegboard. Arrange them along the top row so they match the mounting holes and silhouette logic. The solved sequence reveals the entry combination: 40827.

Tap the digital lock on the cabin door, punch in 40827, and step inside.

Front Yard Area	Items to Gather	Immediate Function
Porch Railing	Machine Wheel	Component for Snowblower repair
Driveway Edge	Fuel Can	Powers the Snowblower engine
Snowdrift Left	Blower Nozzle	Directs snow removal path
Cleared Pathway	Metal Number Tiles	Placed on wooden entrance display board
Front Mailbox	Locked Compartment	Requires Hacksaw's unlocked smartphone later

Step 3: Investigating the Cabin and Cracking the Safe

Inside the cabin, the scene turns grim: Hacksaw lies dead on the floor from apparent gunshot wounds. You must gather clues, search his belongings, and retrieve concealed files. A core obstacle highlighted in any on thin ice walkthrough chapter 1 is deciphering Hacksaw's body tattoos to open his floor safe.

Initial Room Search

Push the fallen mattress aside and pull back the floor rug.
Open the window blinds to flood the room with daylight.
Tear down the hanging Cloth Curtains.
Open the upper wall cabinets to discover an incomplete puzzle frame and collect a Hacksaw tool.
Inspect the informant's body. Note that his mobile phone case is empty, and his prosthetic leg features a screw-latched compartment. Grab the Symbol Strip resting right beside his hand.

Uncovering and Cleaning the Floor Safe

Take the hacksaw from your inventory and cut through the weakened, loose floorboards beneath the rug. Pull the locked safe up into the room. The safe's keypad is caked in dried blood and completely unreadable.

Walk back outside to the front porch, dip the cloth curtains into a puddle of thawed melted water, and return inside. Use the Wet Cloth to wipe away the bloodstain on the safe's numerical interface.

Safe Code Formulation:
[Arrow Tattoos = 9] -> [Skull Tattoos = 4] -> [Heart Tattoos = 1] -> [Wave Tattoos = 6]
Final Code: 9416

Deciphering the Body Tattoos

Examine the symbol strip, which lists four distinct icons in order: Arrow, Skull, Heart, and Wave. Now tap Hacksaw's body and inspect the four distinct tattoo zones (arms, neck, chest, and legs). Count the total occurrences of each icon across his skin:

Symbol on Strip	Body Locations Counted	Total Count
Arrow	Arms (4), Forearms (3), Neck/Collar (2)	9
Skull	Chest (2), Biceps (1), Hand (1)	4
Heart	Upper Chest (1)	1
Wave	Forearm sleeves (4), Side ribcage (2)	6

Enter 9416 into the cleaned safe lock. Inside, collect the Letter, a set of decorative Triangles, and a tactical Lockpin Gun.

Step 4: The Backyard Fire, Ice Stairway, and the Hidden Phone

Continuing through our on thin ice walkthrough chapter 1, step toward the locked door on the right side of the room. Use the Lockpin Gun on the door mechanism to bypass the latch and step into the blizzard-swept backyard, where a getaway car is engulfed in flames.

Extinguishing the Fire and Opening the Car

Remove the protective tarp draped across the backyard barbecue grill to find a Fire Extinguisher and a bottle of Cleaning Oil.
Notice the rusty locked box hidden beneath a snowbank near the deck. Apply the Cleaning Oil to loosen the rust, then leave it until you find a key.
Inspect the ice blocks bridging the gap toward the vehicle.

The Ice Stairway Sliding Puzzle

Tap the floating ice puzzle. Your objective is to slide numerical ice blocks across a checkered grid until each block rests in its corresponding numbered target slot.

Use the open bypass slots to park intermediate blocks while shuffling higher digits.
Community reports suggest moving larger anchor numbers (such as 4 and 5) along the lower rail first to avoid deadlocking the narrower upper channels.
Once all numbered blocks lock into their target positions, the bridge solidifies.

Cross the ice bridge and spray the burning vehicle with the Fire Extinguisher. Inspect the two deceased shooters nearby to retrieve a heavy Crowbar and a mechanical Wrench. Use the crowbar to pry open the crushed driver-side door and retrieve a discarded Phone Cord.

[Phone Retrieval & Prep]
Wrench on Wheelchair ---> Small Key ---> Open Rusty Backyard Box ---> Screwdriver
Screwdriver on Leg Compartment ---> Dead Phone ---> Plug Cord Inside ---> Charge Phone

Unlocking Hacksaw's Device

Return to the cabin and execute these diagnostic steps:

Connect the Phone Cord to the wireless charging station on the living room table.
Use the Wrench to tighten the bolts on the wheelchair in the corner, shaking loose a Small Key.
Run back out to the backyard and unlock the oiled metal box with the Small Key to obtain a Screwdriver and an additional set of Triangles.
Re-enter the cabin and use the Screwdriver to unfasten the screws on Hacksaw's prosthetic leg compartment. Retrieve his Dead Phone.
Rest the dead phone onto the connected wireless charging pad. Wait through Kate and Murphy's dialogue until the battery reaches operational power.
The phone prompts for Face ID authentication. Hold the charged device directly over Hacksaw's face to unlock the home screen.

Step 5: Mailbox Delivery and the Triangulate Puzzle

Read through Hacksaw's text messages. You will discover he was being blackmailed by the ransomware syndicate and that a critical package was left inside the exterior mailbox out front.

Head back to the cabin's front yard and interact with the electronic mailbox. Hold Hacksaw's smartphone near the scanner to unlock the latch. Inside the mailbox, collect the final batch of Triangles and a tactical Chart.

[Final Evidence Procedure]
Collect Mailbox Items ---> Complete Triangulate Cabinet Puzzle ---> Obtain Photo
Combine (Letter + Chart + Photo) on Safe Board ---> Open Wall Compartment ---> Hard Drive Acquired

The Triangulate Puzzle

Return to the cabin interior and access the cabinet puzzle you revealed earlier. Insert all gathered triangle tokens into the board.

Puzzle Rules: You must steer an electrical pulse from the starting node to the yellow target triangle on the far right.
Whenever the electrical charge passes into a triangle, that tile automatically rotates 90 degrees clockwise.
Carefully chart path options: if a tile's rotated exit line points toward a dead end, tap adjacent active nodes to reroute the pulse and force the current tile into the necessary alignment before moving forward.

Guide the charge into the yellow receiver to pop open the secret compartment and claim the informant's hidden Photo.

Uncovering the Hard Drive

Walk over to the evidence board on the cabin wall. Place the Letter, the Chart, and the newly acquired Photo onto the mounting pins. Aligning the clues unlatches a reinforced wall safe containing Hacksaw's encrypted Hard Drive, which holds the syndicate's operational plans.

With the evidence secured in Kate's inventory, Chapter 1 concludes as the blizzard intensifies. For more background on Kate Gray's overarching detective series and upcoming release updates, check out the developer's official catalog at Haiku Games.

Key Inventory Checklist for Chapter 1

Managing your inventory efficiently prevents wasted time walking back and forth between the yard, cabin, and burned vehicle.

Item Name	Where Found	Primary Application
Chip Reader	Supply box in Kate's office	Reveals the PC login code (`63849`)
Snowblower Parts	Front yard (Wheel, Can, Nozzle)	Assembles the snowblower to clear drifts
Hacksaw	Upper kitchen cabinets	Cuts bedroom floorboards to reveal safe
Symbol Strip	Floor next to informant's hand	Cipher guide for the tattoo safe code
Lockpin Gun	Inside tattoo floor safe	Picks the lock on the cabin's back door
Cleaning Oil	Under grill tarp in backyard	Removes heavy rust from locked yard chest
Wrench	Recovered from fallen shooter	Repairs wheelchair to dislodge small key
Screwdriver	Unlocked yard chest	Opens secret prosthetic leg compartment
Phone Cord	Inside burned vehicle cabin	Powers wireless charger on the table
Hard Drive	Concealed wall safe	Primary evidence required to complete Chapter 1

Best Practices for Adventure Escape Mysteries

To keep your playthrough smooth across every chapter of On Thin Ice, consider these community-tested strategies:

Inspect Background Clues Before Zooming In: Subtle room details—such as scuff marks on baseboards or bloodstains on carpet—almost always hint at hidden compartments.
Keep a Scratchpad Handy: Puzzles involving multiple counts (like Hacksaw's 20+ body tattoos) are easier to solve if you write down subtotals per limb rather than recounting every time you switch screens.
Test Every Inventory Item on Stalled Areas: If an interactive prompt fails to open, inspect your items. Often, tools like the wrench or screwdriver need secondary maintenance (like oiling) before they can be used.

Frequently Asked Questions

What is the cabin door keypad code in Chapter 1?

The code for the front entrance keypad is 40827. You deduce this by collecting the scattered metal numbers after using the repaired snowblower and arranging them onto the wooden signpost board to the right of the porch.

How do I open the bloody safe inside the cabin?

First, use the hacksaw from the cabinet to cut open the loose floorboards under the rug. Take the curtains from the window, wet them in the outdoor puddle, and wipe the safe's keypad. Count the tattoos on Hacksaw's body according to the symbol strip (Arrow: 9, Skull: 4, Heart: 1, Wave: 6) and input 9416.

Why won't the smartphone unlock with Face ID?

The phone must have battery power before Face ID works. Make sure you retrieved the phone cord from the burned car, plugged it into the wireless charging pad inside, placed the dead phone on the pad, and waited for Kate and Murphy to finish their dialogue. Once charged, tap the phone on Hacksaw's face.

Why do players consult an on thin ice walkthrough chapter 1 for the Triangulate puzzle?

The Triangulate cabinet puzzle is one of the trickiest segments in Chapter 1 because every move alters the board. Since each triangle rotates clockwise upon receiving an electrical charge, players must anticipate where the circuit will aim on subsequent steps to prevent hitting a dead wall.