How to Play Case Closed - Detective Game

Jeetech Studio · 2026-11-10

What is Case Closed - Detective Game?

Case Closed - Detective Game is a deduction puzzle set in Lantern Bay, a lantern-lit harbour town. You investigate cases by gathering clues, questioning suspects and deciding who committed the crime. Along the way, you also help restore the town.

The game includes 120 handcrafted cases across eight episodes of 15 cases each. The journey runs from a dark lighthouse to the Lantern Night finale. There is also a Daily Case for players who want a regular mystery to work through.

The central idea is straightforward: solve each case using the evidence provided. You do not need outside knowledge, and the answer is meant to follow from the clues. Each case centres on an “aha” contradiction that helps you untangle what happened.

Getting started with your first case

Begin by reading the briefing. Treat it as your introduction to the mystery, and take a moment to understand the situation before looking for a culprit.

Next, search the scene and collect clue cards. Gathering clues and questioning suspects are part of your investigation, so approach the case as a sequence of discoveries rather than a quick accusation.

Once you have evidence to consider, work through it on the Evidence Board. This deduction grid and the clue cards help show how suspects, motives and alibis fit together.

You can also check the settings before settling in. The game offers colourblind mode, sound settings and haptics settings. It works offline and requires no account or login. Progress is saved only on your device, which is worth keeping in mind when deciding where to play.

How the core deduction mechanic works

A case follows a clear sequence:

Read the briefing.
Search the scene and collect clue cards.
Connect the evidence on the Evidence Board.
Make an accusation when you are sure.

The thinking happens between collecting evidence and naming the culprit. Use the board to consider the connections between each suspect, their motive and their alibi. Look for details that cannot all be true together.

For a beginner, a useful approach is to separate what the evidence establishes from what you merely suspect. A theory may sound convincing, but it still needs to fit the clues in front of you. Before accusing someone, ask yourself which evidence supports that conclusion and whether anything contradicts it.

Because each case is built around a contradiction, rereading a clue can be more useful than settling on your first impression. Compare details carefully and look for the point where an explanation stops fitting.

If your accusation is wrong, you can try again. Use that opportunity to reconsider your reasoning. The game also provides hints, undo and restart when you need help working through a case.

Tips to progress through Lantern Bay

Read for connections

Do more than collect clues: compare them. When considering an alibi or motive, return to the other evidence and check whether the details agree. This keeps your reasoning tied to the case rather than to a hunch about a suspect.

Use help when your reasoning stalls

If you keep circling the same idea, consider a hint. Undo and restart are also available. Before using help, try identifying exactly what you cannot explain; that gives you a clear question to think about as you continue.

Revisit cases for a cleaner solution

Every case awards one to three stars, and you can return to solve it more cleanly. Once you understand a solution, revisiting the case can help you recognise how its clues lead to the key contradiction.

Explore the progress features

Beyond solving mysteries, there is a growing Collection Album and detective ranks to climb. You earn Case Files, the game’s coins, and spend them to restore 12 landmarks. Each restored landmark lights up on the town map and unlocks a postcard. Outfits and wardrobe items also unlock as you progress.

For a regular routine, the game offers a Daily Case, a daily streak, three daily missions and a 28-day login calendar with rewards. Leaderboards let you compare results.

Frequently asked questions

Can I play offline?

Yes. The listing states that the game works offline, including for solving mystery cases on a commute or a flight.

Do I need an account?

No account or login is required. Your progress is saved on your device only.

What happens if I accuse the wrong suspect?

You can try again and think through the evidence. Hints, undo and restart are also available.

Are rewarded ads optional?

Yes. You choose whether to watch a rewarded ad for a hint, a revive or free Case Files. Remove Ads and optional coin packs are available as in-app purchases; the coin packs have fixed prices and no random rewards.

Try Case Closed - Detective Game on Google Play and work through your first Lantern Bay mystery.