Unboxing the Cryptic Killer is not a good puzzle game to brute force. It is a two-player co-op escape room where Ally and Old Dog see different pieces of the same box, and most stalls happen because one player describes a finished answer instead of the clue that produced it. This guide is written for two real players who want a practical route through the five-level box, a safer way to communicate, and a clean plan for all Steam achievements.
Spoiler warning: the guide below names late-game levels, achievement triggers, and several intentional wrong-answer actions. The supplied references support the overall route, co-op structure, video walkthroughs, and achievement cleanup very well, but they do not independently verify every single lock code in a text format. Where a room-by-room answer was not text-verifiable, this guide gives the reliable method and points you to the verified full-game video rather than inventing exact codes.
Quick Facts Before You Start
| Item | Verified Detail |
|---|---|
| Steam AppID | 2069040 |
| Developer / publisher | Eleven Puzzles |
| Steam release date | Apr 27, 2023 |
| Genre tags from Steam | Adventure, Casual, Indie |
| Mode | Exactly two-player online co-op puzzle adventure |
| Players | One player as Ally, one as Old Dog |
| Equipment | Each player needs their own copy, a device, internet connection, and voice communication |
| Useful tools | In-game drawing/notes, plus a real shared note for codes, shapes, and lock attempts |
The Best Way to Play the Box
Every level follows the same broad rhythm: read your half, tell your partner what is missing, combine the information, then enter a code or operate a shared control. Room Escape Artist’s review notes the same design pattern: players have separated information and often need to coordinate controls rather than simply solve two solo screens. That is the heart of the game, and it is also the reason many walkthrough users get stuck even when they have the right answer nearby.
Use these communication rules from the first lock onward:
- Call out role first. Say “Ally sees…” or “Old Dog sees…” before each clue. This prevents the wrong player from entering a code meant for the other screen.
- Describe the evidence before the answer. “I have a three-by-three grid with one dark square” is more useful than “press the bottom button” if your partner has a different orientation.
- Agree on directions. For circular puzzles, use clock positions. For grids, use row and column. For crate puzzles, use north, east, south, west or up, right, down, left, but do not switch mid-puzzle.
- Write down failed experiments. Several achievements require repeated wrong actions. Keep those separate from real lock attempts so you do not accidentally chase a joke input as if it were the main route.
- Stop before level exits. If you care about 100%, check the achievement section for that level before you open the final lock or defuse the final bomb.
Level Route and What to Watch For
The game is organized around five levels in the box, with the final level leading to the bomb sequence and ending. The exact sub-puzzle order can feel repetitive because each level tends to feed several smaller puzzles into a lock or final input. That is normal. The important thing is to solve each sub-puzzle as a pair instead of trying to “own” one side.
| Level | Main Focus | Achievement Cleanup Before Leaving |
|---|---|---|
| Level 1 | Learn how Ally and Old Dog pass partial clues across screens. This is where the game teaches the crate, lock, and evidence-sharing rhythm. | Old Dog can earn Rockstar by repeatedly clicking the rock in the basement area. |
| Level 2 | The upper-left video game / crate-pushing sequence is the big cleanup item. Finish all five mini-game stages in one uninterrupted attempt for Pegasus. | Do not press escape or quit the mini-game before all five stages are complete if you are aiming for Pegasus. |
| Level 3 | Grid drawing, a word/code cylinder, and the disk/spoke puzzle create most of the optional achievement work. | Shady Detective, Sticky Situation, In A Spin, and a convenient The Brute attempt can be handled here. |
| Level 4 | Sound board, bottles, and repeated inspect/cancel interactions matter for role-specific hidden achievements. | Ally should handle Purrrfection; Old Dog should handle Nasi Tu Byli. |
| Level 5 | The bomb sequence and ending. This is the point of no return for several role and story achievements. | Before defusing, Old Dog should trigger Tick Tock. Defuse for Kaboom, then finish as both roles for the role achievements. |
Level 1: Start Clean and Set Your Vocabulary
The first level is less about a single hard answer and more about teaching the contract of the game. One player sees a clue in a form that is useless alone. The other player has the control, the matching diagram, or the missing half of the clue. If you find yourself saying “I solved my side,” slow down. In this game, “my side” is usually only half a sentence.
Use Level 1 to set a few habits:
- Read every label and symbol out loud, even if it feels decorative.
- When a lock appears, ask which player has the ordering clue and which player has the input clue.
- If the game gives you a drawing surface, sketch what you see before changing the puzzle state.
- Take turns being the “scribe” so one person is not trying to solve and record at the same time.
For achievement cleanup, Old Dog should interact with the rock in the basement repeatedly. Community guides put the number at roughly twenty clicks. Do this early, before the level flow carries you away from the basement scene. If it does not pop immediately, stop once you have clearly repeated the action many times and continue; achievement timing can lag slightly.
Level 2: Pegasus and the Five-Stage Mini-Game
The Level 2 achievement that causes the most cleanup is Pegasus. It is attached to the video game in the upper-left part of the box. The useful cross-check from Steam Community is that the mini-game has five stages and should be completed in one go. Exiting early, pressing escape, or treating it like a casual practice run can make the achievement fail.
The mini-game behaves like a two-character crate-pushing puzzle. These rules matter more than memorizing a screenshot:
- Never push a crate into a wall unless the target is there. If a crate loses access to two sides, it is usually dead.
- Use one character as a blocker or spacer. Several stages require one detective to stand where the other detective can push from the correct side.
- Plan the final crate first. The last crate often needs the most room, so do not fill the obvious target if it blocks a later push route.
- Reset mentally before touching the next crate. A wrong first push can look harmless until the fourth move.
For Pegasus, start the mini-game only when both players are ready to focus. If you are stuck on a stage, say which crate you intend to move and where the pusher must stand before pressing anything. The Steam 100% guide provides image-based stage examples, but because those image placements are not safe to reproduce here, the cleaner advice is to use the full-game video if you need the visual route.
Level 3: Drawing Grid, Cylinder Code, and Disk Swap
Level 3 is the best place to separate main progression from achievement cleanup. The real puzzle route asks you to interpret shared clues. The hidden achievements ask you to do the wrong thing on purpose. Keep those modes separate so your partner knows when you are experimenting.
Shady Detective
On the drawing-grid puzzle, repeatedly shade and erase the same square. The 100% guide estimates about fifteen clicks. This can be done by either character. Do not worry about making a real pattern for this achievement; the point is repeated pencil use.
Sticky Situation
For Ally’s cylinder / codex style input, enter POOP instead of the real word and hold the open button. This is an intentional joke input tied to the Sticky Situation achievement. After it unlocks, return to the real solution path.
In A Spin
The disk/spoke puzzle normally asks you to match each disk to the shadow with the same number of spokes. For In A Spin, do the opposite in a controlled way: place the one-spoke disk into the two-spoke shadow, the two-spoke disk into the three-spoke shadow, and continue offsetting the placements until every disk is deliberately wrong. The achievement guide describes this as a full mismatched placement, not random spinning.
The Brute
The Brute can be earned on any level with a padlock. Enter an incorrect combination fifteen times in a row and try to open it each time. The Steam guide notes that the wrong code does not need to be unique, so the fastest method is to pick one obviously wrong combination and repeat it. Do this only when both players agree you are in achievement mode, or you will waste time second-guessing real codes later.
Level 4: Sound Board and Bottle Cleanup
Level 4 has two role-specific hidden achievements that are easy to miss because they look like throwaway interactions.
| Achievement | Role | What to Do |
|---|---|---|
| Purrrfection | Ally | Press the cat button on the sound board repeatedly, roughly ten times, until the achievement triggers. |
| Nasi Tu Byli | Old Dog | Inspect the bottles, click them a few times, back out with escape, and repeat the inspect/back-out cycle around eight to ten times. |
Because both actions are repetition-based, they are easy to overdo while your partner is trying to solve the main level. Tell your partner you are doing cleanup, finish it, then return to normal clue sharing.
Level 5: Bomb, Tick Tock, and Ending Roles
Level 5 is the cleanup checkpoint that deserves the most caution. Kaboom is story-related to defusing the bomb, but Tick Tock has to happen after the bomb timer is active and before you finish the sequence.
- Reach the bomb sequence normally.
- Once the timer has started, Old Dog should back out or return to the basement route.
- Click the prisoner and talk to them before defusing the bomb.
- Return to the bomb and complete the defuse sequence for Kaboom.
- Finish the ending as Ally and as Old Dog across your cleanup runs.
Steam guides report that the role-specific ending achievements can unlock from completing Level 5 as the relevant character, but the safest completion mindset is simple: make sure you have personally finished the final chapter once as Ally and once as Old Dog. After both role finishes are registered, Dynamic Detective Duo should complete the set.
100% Achievement Checklist
The table below combines the official Steam achievement names with the readable Steam Community cleanup instructions. Percentages change over time, so the table focuses on actions rather than rarity.
| Achievement | Role | Where | How to Unlock | Missable Risk |
|---|---|---|---|---|
| Pegasus | Either | Level 2 | Complete all five stages of the upper-left video game in one uninterrupted run. | High if you exit the mini-game early. |
| Kaboom | Either | Level 5 | Defuse the bomb at the end of the game. | Low, story-related. |
| Shady Detective | Either | Level 3 | Shade and unshade a square on the drawing grid repeatedly. | Medium; easy to forget. |
| Old Dog New Tricks | Old Dog | Ending | Complete the final chapter / game while playing Old Dog. | Medium if both players keep the same role forever. |
| Awesome Ally | Ally | Ending | Complete the final chapter / game while playing Ally. | Medium if both players keep the same role forever. |
| Rockstar | Old Dog | Basement / Level 1 area | Repeatedly click the rock near the stereo/table area, around twenty times. | Medium; optional interaction. |
| In A Spin | Either | Level 3 | Place the disk/spoke pieces into the wrong matching shadows in a full offset pattern. | Medium; requires intentional wrong solving. |
| The Brute | Either | Any padlock | Try an incorrect lock combination fifteen times. The same wrong combination can be repeated. | Low if planned. |
| Nasi Tu Byli | Old Dog | Level 4 | Inspect the bottles, click, escape/back out, and repeat the cycle several times. | High if Old Dog leaves Level 4 without doing it. |
| Purrrfection | Ally | Level 4 | Press the cat sound-board button repeatedly, about ten times. | High if Ally leaves Level 4 without doing it. |
| Dynamic Detective Duo | Both roles | Ending cleanup | Complete the game/final chapter with both Ally and Old Dog represented. | Medium; requires role coverage. |
| Tick Tock | Old Dog | Level 5 | After the bomb timer starts, return to the basement and talk to the prisoner before defusing. | High; do it before finishing the bomb. |
| Sticky Situation | Ally | Level 3 | Enter POOP on the cylinder/codex input and hold the open button. | Medium; intentional wrong input. |
Recommended 100% Cleanup Route
If you only care about finishing the story, play naturally and use the video when a visual layout is unclear. If you want every achievement with the least friction, follow this order:
- First run: keep your roles fixed. Let Old Dog handle Rockstar, Nasi Tu Byli, and Tick Tock. Let Ally handle Sticky Situation and Purrrfection. Either player can do Pegasus, Shady Detective, In A Spin, The Brute, and Kaboom.
- Before leaving Level 2: finish the mini-game in one clean attempt for Pegasus. If you fail the one-go condition, make a note to replay Level 2.
- Before leaving Level 3: do the drawing-grid repeat, the joke cylinder input, the wrong disk placement, and a padlock brute-force attempt.
- Before leaving Level 4: confirm both role-specific repetition achievements have popped.
- Before defusing the Level 5 bomb: Old Dog must talk to the prisoner after the timer starts.
- Second cleanup pass: swap roles or replay the final chapter as the missing role to get Awesome Ally, Old Dog New Tricks, and Dynamic Detective Duo.
Common Mistakes That Cause Stalls
| Mistake | Why It Hurts | Better Habit |
|---|---|---|
| One player starts pressing buttons while the other is still reading. | The clue may depend on order, orientation, or role. | Read both halves aloud, then repeat the final input once before entering it. |
| Players use vague phrases like “the weird symbol.” | The game often has several similar shapes. | Name symbols by position, count, color, and nearby object. |
| Achievement experiments blend into real solving. | Intentional wrong inputs can make your notes messy. | Say “cleanup mode” before doing wrong-code achievements, then reset your notes. |
| Pegasus is treated like a practice mini-game. | Exiting early can cost the achievement. | Plan the whole five-stage run and commit only when both players are ready. |
| Old Dog defuses the bomb before talking to the prisoner. | Tick Tock depends on the timer being active. | After the timer starts, talk to the prisoner first, then finish the bomb. |
Verified Video Walkthrough
If you need a visual route through the full box, the video below is the most useful verified embed from the supplied references. The title and channel were confirmed through YouTube oEmbed as Unboxing the Cryptic Killer Level 1 2 3 4 5 Walkthrough Full Game (Eleven Puzzles) by Tiny Bunny. Use it for layouts and timing, then return to the checklist above for achievement order.
Sources and Credits
Official metadata and screenshots are from Steam appdetails for Unboxing the Cryptic Killer and the official Eleven Puzzles page. Achievement cleanup and video relevance were cross-checked against readable Steam Community guides and verified walkthrough references. No third-party walkthrough images are used.