Designed, written, and tested by Diligesker Lab · Published June 19, 2026 · Reviewed July 30, 2026. Mechanical claims are checked against the current browser build, project data, or test records. Report a correction.
PLAYABLE LOGIC DEDUCTION GAME
Netherguard: Hero Hunt is a dark-fantasy deduction game. Heroes have entered the demon realm in disguise; the player reads every clue, rules out contradictions, and exposes the infiltrator with proof rather than trial and error.

The first minute
| Step | What happens | What to look for |
|---|---|---|
| 1. Read | The case introduces demon residents and a hidden hero. | Names, visual traits, positions, and relationships. |
| 2. Rule out | Compare each suspect with the complete clue set. | Any statement that makes an identity impossible. |
| 3. Prove | Select a suspect only after the clues leave a defensible answer. | A chain of evidence, not a lucky tap. |
Current game screens





What makes the puzzle fair
- Every intended deduction is supported by the available clues.
- Unsupported guessing is not the intended progression method.
- Hand-authored cases introduce new suspect combinations, traits, and logical relationships.
- The board keeps the reasoning visible from the first clue to the final accusation.
Controls and browser session
Use the on-screen controls with mouse or touch. The browser route loads the game directly from this domain and does not require an account. A short session can be started from the menu, while the project page remains available outside the full-screen play surface.
Who it is for
Netherguard is a natural fit for players who enjoy Sudoku, Picross, logic grids, detective games, and puzzles where a careful chain of evidence matters more than reflexes.
Current status and limits
- Status: playable public browser build.
- Current in-game interface: English and Korean.
- Desktop and mobile browsers can render the build, but comfort varies with viewport height and browser chrome.
- The browser version is maintained as a playable project build; platform-specific store features may differ.
- Last public-route check: July 30, 2026.
Original work and credits
The game design, case structure, characters, project copy, and current screenshots are part of the Diligesker project. The WordPress play route uses the open-source fflate JavaScript library to unpack the hosted runtime bundle in the browser. Included game assets and third-party notices remain governed by the licenses distributed with the project.
Frequently asked questions
Do I have to guess?
No. The central rule is that the available clues must support the accusation. Trial-and-error is not the intended way to solve a case.
Does the game have a story?
Yes. Animated visual-novel scenes follow the Demon Investigation Squad and connect cases across an illustrated regional map.
What should I report if the game does not load?
Include the play URL, browser, device, viewport orientation, whether the loading card appeared, and the last visible screen.
Player guides
Work through one complete case, then use the same clue-reading method on a new board.
Campaign and development guides
Move beyond a single board: learn how lives, time targets, best results, and case unlocks work, then inspect the validation pipeline that checks every current campaign case for a unique and progressively forced solution.