CCAULDERON INTERACTIVE
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LUMEN

Compose light in space and time.

A tactile collection of light experiences: release finite pulses through evolving optical chambers, steer a living beam through an endless stream, or build luminous art in a studio of mirrors, lenses, prisms and mathematical forms.

Available on Google Play
Get Lumen on Google Play
Android 8.0+ · Offline-first · No ads · No real-money purchases
Three main experiences

One optical language. Three ways to play.

Lumen turns the same geometric-light foundation into deliberate puzzles, responsive arcade motion and an expressive creative instrument. Every visual field is rendered from code and every mode is designed to work without an account or content server.

Original procedural light fields · locally rendered on your device

Play with light, not around it.

Each mode is complete on its own, while sharing Lumen's calm, tactile presentation and local progression.

Lightweave campaign

Fourteen authored chambers about position, capture, split paths, optical delay, ordered activation, selective darkness and synchronized arrivals.

Photon Drift

Guide a continuously advancing beam through lenses, water, gates and reflective rails in Flow, Pulse or Overdrive pace.

Classic modes

Journey, Daily Refraction, Flux and the earlier Optics Lab remain available with their own progress and experiments.

Pause time itself

Freeze a travelling pulse, rearrange the room, charge vessels and release stored light when another branch is ready.

Two visual worlds

Photon Drift moves through Astral ocean or Neon megacity scenery with original synthesized music and effects.

Earned prisms only

Unlock visual styles and limited assists using prisms earned through play. They cannot be bought or converted to money.

A light studio, not a level editor.

Place up to three sources, mirrors, lenses, prisms, water, droplets, splitters and walls. Switch from physical rays to kaleidoscope, fractal bloom or Koch crystal art, then save an editable composition or export a clean PNG through Android's system document picker.

01
Physical opticsPlane, curved and parabolic mirrors; convex and concave lenses; glass, water, dispersion and beam splitting.
02
Generative art modesKaleidoscope, fractal bloom and Koch crystal controls for symmetry, recursion, colour and exposure.
03
Editable gallerySave up to twelve compositions, return to them later and use session undo while experimenting.
04
High-resolution exportCreate a clean 2000 × 1200 or 1200 × 2000 PNG without controls or a watermark.

Private by construction.

The current build keeps the experience self-contained.

No account or sign-in

Progress, best scores, compositions, settings and unlocks remain in Android app storage.

No ads, billing or analytics

No advertising, analytics, crash-reporting, social-login, cloud-save or payment SDK is included.

User-directed exports

Lumen sees only the location you choose in Android's document picker when you export a PNG.

Legal & support

Public copies synchronized with the legal centre inside Lumen.

→Privacy Policy

Local saves, PNG exports, permissions and Google Play updates.

→Terms of Use

Licence, local data, optical model, prisms, updates and limitations.

→Support

Troubleshooting, exports, progress and update help.

→Copyright & Licences

Original visuals and audio, ownership and third-party components.