A hacker-noir logic deduction game where you mark grids True or False to deduce the one solution hidden in unlimited, freshly generated puzzles, each proven solvable by pure logic before you ever see it.
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Full audio · Listed languages are supported in the interface, subtitles, or audio (at least one).
Unlimited, freshly generated puzzles. A genuine 10-level difficulty curve. And a solver-verified guarantee that every case has exactly one solution and can be completed through pure logic, with no guessing required.
Mark each grid cell True or False and uncover the single solution hidden in the clues. Prefer a daily ritual? Every player worldwide receives the same Daily Case each day: solve it once, then wait until tomorrow for the next mystery.
Case Files
The main mode offers unlimited practice across 4x4 and 5x5 grids, plus a 10-level Difficulty Ladder. Progress from straightforward introductory clues to the Master tier, featuring a rare cardinality challenge: "Exactly two of the following three statements are true." You will also encounter adjacency clues, including deductions about which items are immediately next to one another. Each tier introduces a new reasoning method rather than simply increasing the puzzle size, creating a genuine sense of progression.
Enable Overclocked to remove utility items and add a countdown timer. It is designed for players who want to solve under pressure instead of taking their time.
Weekly Case
Take on a more challenging shared case each week, with puzzles scaling up to a 6x6 grid. Additional Revives give you more room to recover from mistakes.
Daily Case
A quick shared ritual: one 4x4 puzzle, one attempt, and the same case for everyone worldwide.
Each case includes four tools, with one use of each:
* Scanner reveals a cell.
* Polygraph identifies mistakes on the current grid.
* Clarify highlights the row or column connected to an unused clue.
* Revive removes one incorrect final submission so you can continue instead of losing the case.
These tools are designed as safety nets, not shortcuts. Weekly Cases include additional Revives.
Cases are generated fresh and without limits. Before a puzzle becomes available, it is checked to ensure that it has exactly one solution and can be completed through logical deduction rather than guessing.
You will never receive an unsolvable case or a puzzle with multiple valid answers. If you get stuck, the solution is always contained within the clues.
Investigate five original case packs, each with its own visual style and fictional terminal:
* Corporate espionage.
* Rogue surveillance.
* Deepfake fraud.
* Ransomware.
* The original Cyber-Heist.
The same detective and deduction engine connect every pack. These are not five separate stories, but five different terminals to investigate.
Earn commendations across eleven separate tracks, with real medal artwork and fifty total tiers. Tracks cover the Daily Case, Weekly Case, Case Files, Overclocked mode, five dedicated 5x5 mastery paths, and the Campaign.
Every locked tier is visible from the beginning, so you always know what you are working toward. A complete Statistics screen tracks streaks and solve times across every mode.
The difficulty curve begins with direct facts, then introduces:
* Ordinal clues about item order.
* Adjacency clues about neighboring items.
* Either/or statements.
* If-then logic.
* Cardinality clues requiring you to determine how many statements are true.
This is a real progression in reasoning, not simply a series of larger grids.
The game supports:
* English.
* Simplified Chinese.
* Japanese.
* Korean.
* Russian.
* Spanish.
* German.
* French.
* Polish.
* Brazilian Portuguese.
* Turkish.
* Ukrainian.
* Italian.
* Indonesian.
Every clue required to solve a case is translated, not just the menus and interface.
True and False are always distinguished by shape as well as color, making the game safer for colorblind players.
Share codes let you send friends the exact Case Files puzzle you solved.
If you want deep deduction and long-term progression, start with the Case Files Difficulty Ladder. If you prefer a quick shared challenge, return each day for the Daily Case.
The Grid Detective costs $4.99 right now.
Based on Wish9's price records and IsThereAnyDeal history, the lowest price is $3.99.
The lowest recorded price is $3.99. It's 25% higher right now. It has gone on sale 1 time in the past year. The next big Steam sale, the Steam Winter Sale, starts in 34 days. This is for reference, based on past price records, and doesn't guarantee future prices.
Recommended: Graphics card Any dedicated GPU with Vulkan 1.0 support, Processor Quad-core 2.5 GHz, Memory 4 GB RAM. Minimum: Graphics card Integrated graphics with Vulkan 1.0 support (e.g. Intel HD 4000 or newer), Processor Dual-core 2.0 GHz, Memory 2 GB RAM. Save your PC specs on Wish9 to compare them with this game instantly.
