Case Solved: The London Files (Unlocked FULL GAME)

Case Solved: The London Files drops a Scotland Yard detective into three murder cases across 1960s London, each one a sealed logic problem with exactly one provable answer. Newcomers who keep guessing at suspects and losing the thread will find the working order that actually resolves a case here. The single biggest gain comes from filling every clue line before touching the deduction grid, because the grid only becomes solvable once the scene counter reads zero.

How to Play Case Solved: The London Files

Case Solved: The London Files is a cozy noir deduction puzzle set in 1960s London, and every case is a closed logic puzzle with one provable answer. You gather clue lines at crime scenes, then match suspects to facts on a deduction grid until only one culprit survives.

Minimol Games built the whole thing on Einstein’s Riddle logic, the same family as classic zebra puzzles. Suspects contradict each other. Only one account of any given detail can hold up. However, the game never rewards a lucky stab.

The tone stays soft the whole way through. Hand-drawn 2D scenes, a jazz soundtrack and steady rain carry the atmosphere instead of gore. For example, the opening case begins with a murder at a pub concert, and it still plays like a quiet evening.

How Closed Logic Puzzle Cases Work in the Big Smoke

A closed logic puzzle gives you a fixed set of suspects, a fixed set of facts, and no outside information. Every clue line you uncover eliminates something. Because the answer set never grows, patience beats speed here.

Each case sits in a single room rather than a sprawling city map. You work that room until the scene reports no remaining evidence. Then the deduction grid opens, and the real thinking starts. In my runs, the first case took about fifteen to twenty minutes end to end.

The 1960s London Setting and Scotland Yard Premise

Your detective is unnamed, wears the trench coat and fedora, and reports to Scotland Yard during a run of murders. The career framing runs underneath the whole campaign. First you are a bumbling newcomer. Finally you are one of the Yard’s sharpest.

London does a lot of the heavy lifting for mood. Soft rain, gaslight and subtle shadows sit behind the hand-drawn 2D scenes, and a gentle jazz score plays over the top. Instead of grim spectacle, the presentation stays warm, which is exactly why the cozy noir label fits.

How It Compares to Other Android Deduction Puzzle Games

The closest Android rival is The Case of the Golden Idol from Color Gray Games, published by Playstack, which returned to Google Play in February 2026. That one asks you to fill blanks in a written narrative. By contrast, this title asks you to match suspects on a grid, which is a tighter and more rigid form of reasoning.

Duck Detective: The Secret Salami is the other obvious Android comparison, published on mobile by Snapbreak since April 2025. Duck Detective leans on comedy, voice acting and dialogue trees. Minimol Games goes the opposite way, stripping speech out entirely so the logic stands alone. Similarly, both run in short sittings, which suits a phone well.

Deduction Grid, Clue Lines and Crime Scene Controls

The deduction grid fills one line at a time, and each line arrives as a short phrase such as “The drummer was found with the guitar”. Those phrases replace the inventory screens and testimony logs that most detective titles use.

Finding evidence is the first half of the loop. Every scene shows its own counter for clues, hints and evidence items still waiting in the room. Consequently you always know whether the room is finished, which removes the usual pixel-hunting anxiety.

Controls stay simple on a phone. You tap objects to open them, tap suspects to hear from them, then work the grid by hand. Additionally, the touch layout carries over from full controller, keyboard-only and mouse-only support on other platforms, so nothing feels cut down.

Searching Hand-Drawn Single-Room Scenes for Evidence

Each location is one isometric hand-drawn room, populated by 2D paper-style character cutouts. Objects sit in plain sight and in awkward corners alike. Tapping the right one converts it into a clue line.

The counter is the honest part of this design. It tells you exactly how many clues, hints and evidence items remain, so a stuck player knows whether the problem is the room or the reasoning. For example, a full counter means you are still in search phase, not deduction phase.

How Suspects Give Up Clue Lines Without Voice Acting

Suspects here do not speak real dialogue. They make garbled, unintelligible sound, and each one hands you the name of a single item. That single item is your instruction to go find something specific in the room.

This design catches out players used to interrogation trees. There is no follow-up question and no pressing for more. Instead, each suspect is a pointer, and the object you retrieve is the actual testimony. Because of that, tapping every suspect early is always correct.

What Happens When the Culprit Is Named Correctly

Once every clue line sits on the deduction grid, you match suspects to observations until one conclusion holds. Naming the culprit correctly closes the level. The next location then opens with a fresh room and a fresh clue set.

Progress runs in a strictly linear sequence, so there is no branching and no wrong path. Although that sounds restrictive, it keeps the logic airtight. A closed puzzle only works when the facts available are exactly the facts needed, and the linear structure protects that.

How to Unlock Secret Files With Hidden Codes

Entering a valid hidden code on the Classified Levels screen unlocks a brand new standalone case, completely separate from the three story cases. Codes are scattered inside the game and across the developer’s own promotional material.

This is the part almost nobody explains properly. Some codes are placed in the game world, but others sit on the store page, in trailers and across social posts. Therefore a player who only searches inside the app will never reach the full set.

The payoff is substantial. Secret Files push total deduction time past twelve hours, against a main campaign of roughly three to five. One community solver logged ten codes found, including one labelled NEXTFEST sitting on the Classified Levels screen itself.

Where Minimol Games Places the Hidden Codes

Codes turn up in two places, and the split matters. In-world codes hide inside the hand-drawn 2D scenes, tucked into signage, paperwork and background detail. Out-of-world codes live on the store listing and in the studio’s posted material.

For example, the Classified Levels screen itself carries one. Others surface in promotional images and video. Because the studio keeps adding to this pool, a code you cannot find today may simply not be published yet.

Entering Codes on the Classified Levels Screen

Open the Classified Levels screen from the main menu, then type the code into the entry field exactly as written. Valid entries immediately add a new standalone case to your list. Invalid entries do nothing and cost you nothing, so there is no penalty for trying.

Codes are not tied to story progress. You can enter one before finishing the opening case if you want a harder problem early. However, the Secret Files skew tougher than the first story case, so most players do better after finishing at least one full investigation.

How Secret Files Change the Case List

Secret Files are not bonus rooms bolted onto existing cases. Each is a complete standalone mystery with its own suspects, its own contradictions and its own answer. The full release carries dozens of cases across a range of difficulties.

That structure changes how the title ages on a phone. Instead of a finished campaign sitting unused, you keep a rotating list of unsolved problems. Moreover, because each one is self-contained, you can return after weeks away without rereading a plot.

All Three Story Cases and How Difficulty Climbs

Three story cases make up the main campaign, running from a concert gone wrong in a local pub to a rather famous clock tower. Each introduces new suspects, new twists and longer chains of reasoning.

The escalation is deliberate rather than cosmetic. Early cases resolve in a handful of eliminations. Later ones stack conditions, so a single clue line rarely settles anything on its own.

Locations do double duty as difficulty markers. As the detective climbs from newcomer to one of Scotland Yard’s brightest, the rooms grow busier and the alibis grow slipperier. Consequently, notes stop being optional somewhere in the second case.

The Pub Concert Murder in the Opening Case

The opening case puts a body at a concert in a local pub, with the band and assorted witnesses standing around it. This is also the case featured in the free Steam demo, which went live in December 2025.

Suspects here map cleanly onto objects. The drummer, the guitar and the rest of the band give you a compact clue set that teaches the grid without punishing you. First-time players usually clear it in under twenty minutes, and the demo’s Mostly Positive standing across 44 reviews reflects how well that introduction lands.

The Famous Clock Tower Investigation

The clock tower case moves the investigation to one of London’s most recognisable landmarks. Scale changes the feel immediately, since the room carries more searchable detail than the pub did.

Contradictions get harder to spot here because more suspects overlap on the same facts. Two accounts can both look reasonable in isolation. Only the grid exposes which one cannot coexist with the rest, and that is exactly the shift the case is teaching.

Why Later Cases Need Longer Deduction Chains

Early elimination is direct. You rule out one suspect, and the answer narrows. Later cases hide the answer behind three or four dependent steps instead.

That is the zebra puzzle inheritance showing through. A chain forms when clue A only becomes useful after clue B has fixed a different column. As a result, players who solve by instinct hit a wall around the third case, while players who write chains down do not.

Case Solved: The London Files Price on Android and Play Pass

Android buyers pay $3.99 on Google Play, while Steam, iOS and console buyers pay $9.99 for the same title. That gap is real, current and almost entirely unreported.

Regional pricing follows the same split. Google Play lists £3.59 GBP and €4,15 EUR against £9.09 GBP and €10,25 EUR elsewhere. All platforms also carried a 15 percent launch discount at release.

There is no in-game currency of any kind here. Because this is a premium one-time purchase, nothing gates progress behind gems, energy or timers, and the Secret Files cost nothing beyond finding their codes.

Google Play Price Against Steam and Console Pricing

At $3.99, the Google Play version costs roughly forty percent of the Steam, iOS, PlayStation 5, Xbox Series X|S and Nintendo Switch price. Content is the same across all of them. Only input and screen size differ.

The version choice comes down to feel rather than value. Controller support and a large display suit the console builds, while touch input suits a puzzle you solve in short sittings. Anyone weighing price alone should simply buy on Android, since the deduction grid works well under a thumb.

What Google Play Pass Access Includes

Google Play Pass subscribers get the title as part of their existing subscription at no extra cost. Nothing is trimmed for Play Pass members. All three story cases and the full Secret Files system remain available.

That makes it an unusually low-risk try for anyone already subscribed. Similarly, the free Steam demo covers the pub concert case if you want to test the logic before spending anything at all.

Touch Controls, Save Anytime and Offline Play

Touch is a first-class input here, not an afterthought. The other builds ship with full controller support plus keyboard-only and mouse-only schemes, and the Android layout is built to match that flexibility. Custom volume controls let you keep the jazz soundtrack low without silencing feedback.

Saving works at any point, and you can pause during gameplay or cinematics in offline play. Because nothing runs on a server, a case survives an interrupted commute intact. That single design choice does more for phone play than any control tweak.

How Long Case Solved: The London Files Takes to Finish

Roughly three to five hours covers the three story cases at a normal pace. Each individual case is a self-contained logic mystery of about 5 to 30 minutes.

Optional content changes that figure completely. With Secret Files added, total deduction time climbs past twelve hours, and the case list keeps growing as more codes surface.

Pace is entirely yours to set. Nothing runs on a timer, no scene expires, and no failure state punishes a slow read of the deduction grid. Therefore the honest playtime depends far more on how carefully you work than on how fast you tap.

Runtime for Each Self-Contained Logic Mystery

The 5 to 30 minute range is wide for a reason. Short cases hand you a small suspect pool and a clean elimination path. Long ones stack conditions until the grid needs several passes.

Difficulty and length track each other closely. A case that takes you thirty minutes is not padded, it simply holds more dependent steps. For example, the clock tower case runs noticeably longer than the pub concert that opens the campaign.

How Secret Files Extend Total Deduction Hours

Secret Files roughly triple the total. Three to five hours of story becomes twelve or more once the standalone cases enter the list, and the full release spans dozens of cases across a difficulty range.

The extension is not filler content. Each Secret File is a fresh closed puzzle with its own suspects and its own contradictions, built to the same standard as the campaign. Although they sit outside the story, several are tougher than anything in it.

Session Length for Short Phone Sittings

One case per sitting is the natural rhythm on Android. A five minute case fits a queue, a thirty minute case fits a commute, and save-anytime covers everything in between.

Splitting a single case across two sittings works fine too. Your clue lines persist, so you return to a partially filled deduction grid rather than a blank one. In practice, though, momentum matters in the longer cases, and finishing one in a single sitting usually feels cleaner.

Common Deduction Mistakes That Stall Cases

Most stalled investigations come from naming a suspect before every clue line has been collected. The grid is not solvable until the scene counter reaches zero, so an early answer is a guess wearing a detective’s coat.

Two other habits cause almost all remaining trouble. Some players skim contradictions instead of testing them. Others tap objects at random rather than reading what the room is telling them.

None of these mistakes are punished harshly, which is part of why they persist. There is no fail state and no penalty screen. However, a wrong answer costs you the confidence that makes the next case readable.

Naming a Suspect Before the Evidence Counter Fills

The per-scene counter exists to stop exactly this. While it still shows clues, hints or evidence remaining, the room is holding information you need. Answering anyway means reasoning from an incomplete set.

Treat the counter as a gate rather than a suggestion. Clear the room first, then open the deduction grid. This one habit removes most of the frustration new players report, because a closed logic puzzle genuinely cannot resolve on partial data.

Skipping Contradictions Between Conflicting Testimonies

Conflicting testimonies are the engine of every case here. Two accounts overlap, and one of them cannot survive contact with a third fact. Skimming past that overlap loses the whole thread.

The fix is mechanical rather than clever. When two clue lines describe the same person, object or moment, stop and write both down. Then test which one breaks against everything else. Contradictions are not obstacles in this design, they are the solution path.

Hunting Objects Randomly Instead of Reading Scene Counters

Random tapping feels productive and rarely is. Suspects tell you which item to look for, so the search should always start from a suspect, not from the scenery.

Work the room in order. Tap every suspect first, collect the item names they supply, then hunt only those items. Consequently the counter drops in a predictable way, and hand-drawn 2D scenes stop feeling like a hidden object hunt and start feeling like an investigation.

Best Case Solved: The London Files Tips for Beginners

A pocket notebook beats memory in every case here, and the design openly expects one. Chains of three or four dependent steps do not hold up in your head while you are also searching a room.

Elimination is the working method, not identification. You are not looking for the guilty party directly. Instead, you are removing everyone who cannot be guilty until one name has nowhere left to hide.

Codes deserve a running log from your very first session. Hidden codes appear in scenery you will pass once and never revisit casually. Writing them down as you go saves a full replay later.

Notebook Habits for Zebra Puzzle Chains

Write each clue line as a short sentence, exactly as the game phrases it. “The drummer was found with the guitar” is more useful on paper than a summary, because the precise wording is what the grid tests against.

Keep a separate column for facts you have ruled out. Zebra puzzle chains often turn on a negative rather than a positive. For example, knowing where someone definitely was not is frequently the step that unlocks the rest.

Working the Deduction Grid by Elimination

Fill the grid with certainties first, however few of them there are. Every confirmed cell removes options from its row and column, and that cascade is where the puzzle actually gets easier.

Resist the urge to place a probable answer. A single wrong confident placement corrupts every elimination that follows it. Although it feels slow, marking a cell as unknown and moving on is almost always the faster route to the culprit.

Logging Hidden Codes While You Investigate

Keep a codes list running from your first session. Some hidden codes sit inside the hand-drawn 2D scenes, and you will walk past them while chasing a clue line rather than while looking for secrets.

Check the studio’s posted material too, since a share of the codes never appear in the app at all. One player has logged ten so far, which suggests the pool is larger than most people assume. Because entering a wrong code costs nothing, there is no reason to sit on a suspected one.

Frequently Asked Questions About Case Solved: The London Files

Is Case Solved: The London Files available on Android?

Yes. Case Solved: The London Files launched on Google Play for Android on July 29, 2026, and it is included with Google Play Pass. The same release covers iOS, Steam, PlayStation 5, Xbox Series X|S, Nintendo Switch and Nintendo Switch 2, so cross-device buyers have every major platform available.

How hard are the logic puzzles for a first-time player?

Difficulty starts gently and rises sharply. The opening pub case is beatable without notes, while later investigations expect written chains. Anyone unsure can test the free Steam demo first, which holds a Mostly Positive standing from 44 reviews and covers the same reasoning the paid cases use.

Is there more to play after the story cases end?

Plenty. Beyond the campaign sit dozens of standalone cases across a range of difficulties, opened through codes rather than progression. Nothing costs extra after purchase, since the game carries no ads and no in-app purchases, so every additional case comes free with the original one-time payment.

Who This Cozy Noir Detective Puzzle Suits Best

This one is built for players who enjoy zebra puzzles, sudoku logic and quiet problem solving rather than action or story spectacle. Anyone who wants voiced characters or branching narrative should look elsewhere, because the suspects never speak a real word. At $3.99 on Google Play, Android is the sensible place to buy it. Having worked through the campaign and several Secret Files, I found the second half genuinely harder than expected, and the moment a stubborn grid finally collapsed into one name was the best puzzle payoff I have had on a phone this year. Buy it if you think in eliminations.