Mindengine
Prototype · In-engine footage

The Duality

Two men. One truth. A darker London.

Genre
Action, stealth
Setting
London, 1888
Players
Single player
Engine
Unreal Engine 5
Playable
Mission I

Play Dr. Henry Jekyll and Mr. Edward Hyde in a London where fiction bleeds into history, and the Ripper is only one thread.

The Whitechapel murders are terrorising the East End, but Jack the Ripper is part of something larger. Sherlock Holmes is investigating crimes that shouldn't be possible. A young H. G. Wells is building things that shouldn't exist.

The transformation changes everything: the controls, the camera, the music, the way people react to you, and which parts of the city you can reach.

Jekyll in a gaslit Whitechapel street, cane in hand
Mission I · The First Transformation

Scroll to change

Jekyll. A gentleman, a cane, a serum vial, and a street that isn't safe after dark.

The Black Veil. Hooded men close in out of the fog. The cane only holds them so long.

The change. The serum takes hold. The coat, the shoulders, the man inside it.

Hyde. Up the brickwork and over the roofs. The city is a different shape now.

Two ways to play

The change between them rewrites the controls, the camera, the music and the city.

By day

Dr. Henry Jekyll

  • Stealth and social deduction among Victorian society
  • Gather ingredients and brew serums in the lab
  • Environmental puzzles: intellect over force
  • Warm gaslight, strings and grounded movement
By night

Mr. Edward Hyde

  • Rooftop parkour: wall-runs, vaults, leaps
  • Cane-and-fist combat, grabs, throws, ground-pounds
  • Smash through walls and breakable streets
  • Cold contrast, industrial percussion, speed

Seventy seconds in Whitechapel

Unedited in-engine capture from the first playable mission. Sound on.

Choose a frame to play the footage from that moment.

From the game

Jekyll swings his cane at a hooded attacker in a gaslit street
Cane against knife
Concept portrait of Mr. Hyde
Hyde · concept
Hyde crouches on wet rooftops among chimney stacks in blue fog
The rooftops
Hyde drops past lit windows into an alley
The long drop
Hyde climbs a lit brick wall
Up the brickwork
Concept lineup of Black Veil cultists
The Black Veil · concept

One city, read two ways

Each district plays differently as Jekyll and as Hyde.

WhitechapelRipper territory. Slums, alleys and passages underground.
WestminsterScotland Yard and polished facades hiding darker business.
Soho & BloomsburyJekyll's laboratory, bohemian circles, Wells' workshop.
The DocklandsSmuggling, industry and chaos. Hyde's playground.
Baker StreetHolmes' domain, and his growing suspicion of you.

Where it's at

PlayableThe First Transformation

Carriage driving, cane combat, the change, and a rooftop chase.

In progressCombat and traversal

Hit reactions, breakable props, and Hyde's parkour.

NextMore of 1888 London

New districts, Holmes, and the Black Veil.