Casual

Dune Surfer

Carve left and right down a dusk dune while a collapsing wall of sand chases you. Thread the flag gates to buy distance; miss and the avalanche closes in.

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Build a mobile portrait web app called “Dune Surfer”.

Cover: Sand-surfer ahead of a dune collapse at dusk. The title sits on a clean band with a one-line tagline, a two-line how-to-play block with small icons, and a single Enter button.
Core action (swipe to carve): Swipe left/right to carve as you descend ahead of a growing avalanche; thread flag gates and jump ramps for air. The avalanche nips at mistakes. Distance and gates = score.
Result: mountain-line card of your descent trace. Put a real Share button on the result screen (it must post to the Eazo community) and keep Replay next to it.
Visual bar: carve spray, avalanche is a roiling wall with debris, slope light shifts through altitude bands.

Global requirements: mobile-first portrait, touch only, 100dvh with safe areas, no hover dependence. Built-in i18n with exactly two locales (English default, Chinese only after the user taps the EN/中文 toggle placed clear of the status bar), never mix languages on one screen, share output always English. Absolutely no external APIs, no login, no background music. Every control must actually work — no placeholders.