Fractilume: Wave Lab

Fractilume is a tactile wave-optics puzzle campaign about shaping light rather than tracing a predetermined path. Place and tune emitters, mirrors, splitters, phase plates, and absorbers. Build constructive interference at exact receivers while keeping energy away from forbidden thermal zones. Every action changes the live field, so solving means reading phase, intensity, and geometry together. The 90-stage campaign retains stars and best scores locally. An illustrated offline fieldbook explains emitters, phase relationships, receiver bands, scoring, and the optical tools used throughout the campaign. The new Interference Laboratory makes the core tradeoffs measurable. Adjust phase alignment and receiver intensity, introduce thermal spill, and watch field stability change in real time. A deterministic daily split-phase challenge provides the same seeded level and extra constraint for the date without an account or server. Fractilume includes local achievements, haptic and high-contrast preferences, reduced-effects controls, Dynamic Type, VoiceOver support, and layouts designed for both iPhone and iPad. One paid download includes every trial and feature. There are no subscriptions, ads, in-app purchases, accounts, analytics SDKs, or remote unlocks.