Engine / Loop
Case Manager
Sixteen cases across four acts. Each case tracks evidence, witnesses, deductions, and prophecy links — closing only when every thread is researched and every clue collected.
Case study / 2026 — Educational game
Holy
Week.
A browser-based investigative detective game set during Holy Week in Jerusalem. Four acts. Sixteen cases. One truth — told across desktop, mobile, 2D and 3D interfaces.
The brief
Detective
storytelling.
Build a respectful, playable investigation of the events of Holy Week. Players move through scenes in first-century Jerusalem, interview NPCs, collect evidence in three-dimensional environments and connect biblical prophecies to their fulfilments. The same story is told through four parallel interfaces — each one revealing a different facet of the world.
00 / Launcher
One hub.
One hub.
Every act.
A single landing page routes players into the live mobile build, the in-progress desktop prototype, the 2D variant, and the tools that built them. Designed as a launcher first — everything one tap away, nothing hidden behind menus.
01 / Act map
Four acts.
Four acts.
Sixteen cases.
The Act Map is the player's home base. Cases unlock as evidence and witnesses accumulate, with progress carried forward between sessions. Each act surfaces a different region of Jerusalem — the Temple courts, the Upper Room, the Garden, the walls.
02 / Scene
Walk the
Walk the
city.
Three.js scenes for the Temple, Upper Room, Garden and city gates. Cannon-es handles physics, Howler delivers spatial audio, and NPCs run on Ink-authored branching dialogue. Players explore, examine, and interview — every object is an evidence opportunity.
03 / Case file
Evidence,
Evidence,
organised.
The case file is the player's notebook — items, documents and testimonies logged in real time as they're discovered. Filter by type, weight, or source. Contradictions surface as Doubt; consistent patterns build the Investigation Score.
04 / Lab
Compare.
Compare.
Conclude.
The Lab is where evidence earns its keep. Players pair items, build timelines, and spot contradictions. Successful pairings raise the Research Score; incorrect links add Doubt and reshape faction reputation with the Scribes, Temple, Romans and locals.
05 / Codex
Prophecy
Prophecy
& fulfilment.
The Codex is where Scripture meets evidence. Players match prophecy to fulfilment across multiple cases — surfacing hidden chains like Passover Lamb, Psalm 22, the Day of Atonement, the New Covenant, and Resurrection.
Core Systems
Investigation loopEngine / Evidence
Evidence System
Items, documents and testimonies are logged, weighed and cross-referenced. Contradictions surface as Doubt; consistent patterns build the Investigation Score.
Engine / Deduction
Deduction Engine
Lab puzzles compare, categorise and timeline evidence. Successful pairings raise the Research Score; incorrect links add Doubt and reshape faction reputation.
Engine / Narrative
Ink Dialogue
WhatsApp-style conversations authored in Ink. Witnesses reveal testimonies, evidence, and prophecy rumours through branching dialogue trees.
Engine / World
3D World
Three.js scenes for Jerusalem — the Temple, the Upper Room, the Garden, the city walls and gates. Cannon-es physics, Howler spatial audio, Fireworks resolution.
Engine / Lore
Codex & Prophecies
Match Scripture evidence to Fulfillment evidence. Hidden chains surface across multiple cases — Passover Lamb, Psalm 22, Day of Atonement, the New Covenant, Resurrection.
Four Platforms, One Story
InterfacesDesktop / WIP
Desktop
Full 3D experience with globe map, HUD panels, keyboard and mouse controls. Built with Three.js, Cannon-es, and Ink narrative scripting.
Launch desktop ↗Live / Mobile
Mobile
Mobile-first interface with touch controls, streamlined panels and the full investigative loop. The primary play surface for the project.
Launch mobile ↗Prototype
Mobile 2D
Two-dimensional variant of the mobile experience. Faster to load, easier to teach with — useful for classrooms and slower devices.
Launch prototype ↗Prototype
Mobile 3D
Three-dimensional mobile experience with the deduction engine inlined. A bridge between the desktop and mobile interfaces.
Launch prototype ↗Impact
4Parallel interfaces
16Cases across four acts
3Scoring tracks
5Hidden prophecy chains
01 — Honour
Four factions
Standing with the Scribes, Temple, Roman garrison, and locals. Honour hits zero and the case goes cold.
02 — Doubt
Global pressure
Failed challenges, sloppy deductions and incorrect prophecy links all add Doubt. Final score is reduced by Doubt × 2.
03 — Research
Persistent score
+20 RP per completed prophecy, +25 per hidden chain. The deeper the case, the higher the Research rank.
Technical stack
Three.jsCannon-esInkHowler.jsFireworks.jsWebGLWeb AudioService WorkerStatic HTML / CSS / JS