- On Thin Ice chapter 4 walkthrough covers the gate, drones, hideout, rescue, and final battle.
- Gate code: Use the bullet-hole signs to enter 991224.
- Ring puzzle: Match the carved letters to reveal the number 7427.
- Rescue route: Use the syrup, taser, and handcuff key in the correct order.
- Final fight: Follow the fight manual across three rounds instead of choosing moves randomly.
On Thin Ice Chapter 4 Walkthrough: Entry Route
The On Thin Ice chapter 4 walkthrough begins at Sticks’ hideout, where Kate and Murphy must clear the snowy entrance and decode a locked gate. Search every visible object before moving forward because the signs provide the complete clue for the first combination.
Video Highlights:
- Clearing the tarp entrance and collecting the spikes
- Finding the vodka and reading the bullet-hole signs
- Entering the gate code 991224
- Navigating the drone section to collect all five markers
Brush away all snow-covered signs before interacting with the metal box. The signs are not optional decoration; they contain the numbers needed for the gate.
Clear the Entrance
Pull out the spikes beside the tarp to reach the hideout entrance.
Collect the Clue Items
Brush away the snow, inspect the signs, and take the vodka from the rubble pile.
Open the Gate
Pour the vodka on the frozen metal box, inspect the bullet hole, and decode the signs.
The gate uses three signs marked by different numbers of bullet holes. Read the number associated with each bullet-hole count, then enter the values in order.
| Bullet holes | Sign number | Code segment |
|---|---|---|
| 1 | 99 | 99 |
| 2 | 12 | 12 |
| 3 | 24 | 24 |
The complete gate code is 991224. After the gate opens, enter the drone area and guide Kate and Murphy toward all five markers without being detected. The exact route depends on the movement options shown on screen, so prioritize safe squares and avoid rushing into a drone’s line of sight.
Drone Area and Murphy’s Bridge
After collecting the five markers, use them to blow up the ice wall and reveal the secret hideout. The next challenge is a short construction puzzle that lets you cross the damaged section and reach Murphy.
Before finishing the bridge, go outside and remove the fallen signs with the hammer. One of them hides a carving that is needed for the ring mechanism later.
Prepare the Hideout
Move the curtain and collect the hammer. Pick up the two beams near the door before leaving the room.
Remove the Planks
Use the hammer to remove two planks inside, then go outside and collect the fallen sign.
Search the Signs
Use the hammer on the remaining signs outside. Inspect the exposed carving before returning indoors.
Build the Crossing
Place the two beams first, add the five planks, position the spikes as nails, and hammer them into place.
Use this order to avoid backtracking:
| Area | Required item | Action | Result |
|---|---|---|---|
| Hideout interior | Hammer | Move curtain and collect it | Enables plank removal |
| Door area | Two beams | Pick them up | Supports the crossing |
| Interior and exterior | Five planks | Remove signs and collect planks | Completes the bridge |
| Bridge | Spikes and hammer | Place spikes, then hammer them | Opens the route to Murphy |
Once the crossing is complete, Murphy provides a gold ring and points toward the carved mantelpiece. Do not leave the area before checking the fireplace and the upper part of the mantelpiece.
Ring Mechanism and the 7427 Code
The hideout’s ring puzzle is the central logic challenge in this chapter. You need three rings, then must rotate them until their letters match the carving found outside.
The carving outside is the pattern to copy. When the rings are aligned correctly, the number framed by the letter V is 7427.
Gold Ring
Take the ring Murphy gives you after completing the bridge.
Fireplace Ring
Search inside the fireplace to find another ring.
Skylight Ring
Collect the skylight rod and use it to pull down the third ring.
Follow the sequence below rather than trying to rotate the rings immediately:
- Collect Murphy’s ring after crossing the repaired bridge.
- Search inside the fireplace for the second ring.
- Take the skylight rod from above the mantelpiece.
- Use the rod to retrieve the third ring.
- Place all three rings on the mantelpiece.
- Rotate the rings until the letters reproduce the outdoor carving.
- Read the number enclosed by the V: 7427.
| Puzzle stage | Action | Important result |
|---|---|---|
| Ring one | Accept the ring from Murphy | First ring obtained |
| Ring two | Search the fireplace | Second ring obtained |
| Ring three | Use the skylight rod | Third ring obtained |
| Alignment | Match the outdoor carving | Correct ring arrangement |
| Number clue | Read the framed digits | 7427 |
After solving the mechanism, descend through the fireplace to reach the lower hideout. The code 7427 is used later when opening the duffel bag, so keep it available rather than assuming the puzzle is finished.
If the fireplace route has opened and you have recorded 7427, the ring section is complete. The next objective is rescuing Caspia.
Generator, Colt, and Caspia Rescue
The lower hideout contains the items needed to distract Colt and free Caspia. Several objects are collected in different rooms, so follow the order carefully.
Open the duffel bag with the skylight rod, take the chisel and fight manual, then return upstairs before using the syrup on the generator.
Open the Duffel Bag
Use the skylight rod on the duffel bag in the lower area. Take the chisel and the fight manual.
Open the Round Object
Return upstairs. Use the chisel and hammer on the round globe-like object to obtain the syrup and broken bottle.
Distract Colt
Go back downstairs and pour the syrup into the generator. This creates the distraction needed to search Colt’s backpack.
Take the Taser
Remove the fight manual and taser from Colt’s backpack. Review the manual before beginning the confrontation.
Free Caspia
Use the taser on Colt, take the handcuff key, and use the key to release Caspia.
| Objective | Item or tool | Correct use |
|---|---|---|
| Open the bag | Skylight rod | Pull open the duffel bag |
| Open the globe-like object | Chisel and hammer | Extract the syrup and broken bottle |
| Distract Colt | Syrup | Pour it into the generator |
| Disable Colt | Taser | Use it after taking the fight manual |
| Free Caspia | Handcuff key | Unlock Caspia’s restraints |
The order matters because the fight manual explains the move system used in the final encounter. Read it before stepping onto the bridge. The battle is timed, and each round gives you a limited set of moves, so entering without reviewing the instructions can lead to unnecessary mistakes.
Final Fight Strategy and Chapter Completion
The final encounter lasts three rounds. Each round allows three choices, and the goal is to knock Sticks out once per round. The fight manual explains the move relationships, so use it as a reference instead of selecting attacks based only on damage.
The battle is timed. Review the manual before starting, then choose moves according to the counter system. Sticks may use a different sequence from the one available to Kate.
The demonstrated strategy begins with Dodge, Block, Elbow in the first round. Later rounds use attacks such as Stab, Punch, and Kick, with the correct counter depending on the opponent’s move. In the final round, a kick can beat an elbow, allowing you to finish the encounter before the opponent’s next attack.
| Round | Confirmed guidance | Goal |
|---|---|---|
| Round 1 | Dodge, Block, Elbow | Knock Sticks down once |
| Round 2 | Follow the fight manual and use the shown counters | Knock Sticks down again |
| Round 3 | Use the final counter sequence; kick beats elbow | End the fight before the next attack |
Chapter 4 Completion Checklist:
- Clear the tarp entrance with the spikes
- Enter the gate code 991224
- Collect all five drone-area markers
- Build the bridge with beams, planks, spikes, and the hammer
- Align the three rings and record 7427
- Use the generator distraction and free Caspia
- Defeat Sticks across three fight rounds
After the third successful round, watch the ending sequence to complete the case. For a visual reference alongside this written route, use the On Thin Ice Chapter 4 walkthrough guide.
Q: What is the Chapter 4 gate code in On Thin Ice?
The gate code is 991224. It comes from the signs marked with one, two, and three bullet holes: 99, 12, and 24.
Q: How do I solve the ring puzzle?
Collect three rings, place them on the mantelpiece, and rotate them to copy the letters carved on the outdoor clue. The number framed by the V is 7427.
Q: Where do I find the taser?
Open the duffel bag with the skylight rod, take the fight manual, then use the chisel and hammer on the round object upstairs. Collect the syrup, pour it into the generator, and search Colt’s backpack for the taser.
Q: How many rounds are in the final fight?
The final fight has three rounds. You must knock Sticks out once in each round by selecting counters from the fight manual.
Chapter 4 Quick Reference
Use this compact reference when replaying the chapter or checking which clue comes next.
The shortest reliable route is: gate code, drone markers, bridge, three rings, 7427, generator distraction, taser, handcuff key, then the three-round fight.
| Sequence | Location | Key action |
|---|---|---|
| 1 | Snowy entrance | Collect spikes, vodka, and sign clues |
| 2 | Metal box | Enter 991224 |
| 3 | Drone area | Collect five markers without detection |
| 4 | Hideout | Build the bridge and rescue Murphy |
| 5 | Mantelpiece | Align three rings and read 7427 |
| 6 | Lower hideout | Open the bag and collect the fight manual |
| 7 | Generator area | Use syrup, taser, and handcuff key |
| 8 | Bridge | Win three fight rounds and finish Chapter 4 |
Keep the two codes separate: 991224 opens the gate, while 7427 belongs to the ring mechanism and later duffel-bag progression. Once both are solved, the remaining obstacles are item-order puzzles and the timed fight.