Every equation tells a crime. Every cipher reveals a suspect.
Step inside The Fourth Clue—an interactive murder-mystery game presented through an animated math-based story. Master four escalating puzzle chapters, deduce hidden numerical evidence, and unmask the perpetrator before midnight expires.
"The midnight cipher holds 4 missing coordinates. Solve Chapter 1 to unlock the suspect roster."
Investigative Mechanics
Every crime scene is a structured equation waiting to be balanced. Turn logical deduction, algebraic proofs, and physical evidence into answers.
Deductive Reasoning
Sift through conflicting witness statements and crime scene logs. Formulate logical premises to isolate suspects before calculating critical variables.
Equation Decoding
Translate encrypted numerical codes, ballistic trajectories, and time-stamped alibis into exact algebraic coordinates that pinpoint the crime sequence.
Interactive Clue Analysis
Test mathematical solutions against forensic physical evidence in interactive dossiers. Each correct deduction unlocks the next animated chapter.
Ready to analyze the crime scene files?
Begin with Level 1 and unlock the cinematic four-part murder mystery sequence.
Four Levels. One Unbreakable Case.
Every chapter transforms abstract mathematical reasoning into forensic evidence. Progress from physical scene geometry to the ultimate master cipher to identify the culprit.
A shattered antique clock and chalk markings reveal an impossible line of sight.
Reconstruct ballistic angles and determine the killer's exact vantage point.
[DELTA-X: 14.8m | THETA: 34.2*]Four suspects, four conflicting alibis, and a digital keycard log that repeats in primes.
Cross-reference suspect statements against surveillance timestamp anomalies.
[MOD-12 LOG: PRIME_COLLISION_07]Hidden cipher columns buried in the victim's laboratory notes point to a stolen formula.
Synthesize laboratory spectrometry ratios to decode the encrypted lab journal.
[DET_MATRIX: -4.892 // KEY_ROT: 13]The missing variable ties every prior clue into an indisputable deduction chain.
Unify all mathematical evidence to expose the architect behind the midnight murder.
[OMEGA_VERDICT: UNREVEALED_IDENTITY]Begin with Level 01: The Crime Scene Geometry
No advanced calculus required. Every puzzle equips you with the deductive equations needed to unlock the next chapter and reveal the identity hidden in the Fourth Clue.
Interactive Clue Dossier
Examine crime scene formulas, decode mathematical ciphers, and inspect animated evidence files. Every equation unlocks a vital forensic deduction.
Ready to Solve the Entire 4-Level Mystery?
Begin with Level 1: The Conservatory and deduce each equation to reach the final revelation.
Solve the Midnight Cipher
Essential details on our four-level murder mystery, math-based puzzle mechanics, and your path to the truth.
Ready to start the investigation?
Begin your journey through the four levels and solve the mystery.
Solve the First Clue and Unmask the Crime Scene
A high-stakes murder mystery locked behind mathematical sequences. Four interlocking crime scenes await your deduction. Crack the sample equation below or dive straight into Level One.
Intercepted Suspect Notation:
f(x) = (3, 1, 4, ?). The crime occurred at coordinate [3, 1, 4, 2]. Decrypt the 4-digit code to access Room 404.
Case Status
Active Homicide
Cipher Matrix
Level 1: Fibonacci Shift
Avg. Solve Time
14 Minutes
Direct investigative support available via Investigator Dispatch. No prior math degree required.