Vienna · The Danube

Restore the river,
one quest at a time.

Riverquest turns the city into your playground. Walk to real landmarks, check in with GPS, earn rewards, and watch the Danube come back to life.

Android app coming soon See quests

Explore Vienna

Quests along the Danube

Real places. Real walks. Each check-in pushes the river toward purity.

  • +50

    Reichsbrücke Check-in

    Visit the Reichsbrücke along the Danube to begin restoring the river.

    Stage 1 · 75 m radius
  • +50

    Donauinsel Check-in

    Walk to the southern Donauinsel shore and check in along the Danube.

    Stage 1 · 75 m radius
  • ?

    More quests coming

    New stages and locations along the river are in development.

    Coming soon

Your journey

From muddy banks to clear water

Complete quests to earn points, advance through stages, and unlock a cleaner, brighter river. Progress saves locally and syncs to the cloud when you sign in.

  1. 1
    The awakening First check-ins along the Danube
  2. 2
    Currents return More locations, deeper exploration
  3. 3
    Clear waters The river fully restored

Built for explorers

Play your way

  • GPS quests

    Stand at the landmark, tap check-in, and the server verifies you’re really there.

  • Offline-first

    No signal by the riverbank? Keep playing. Progress syncs when you’re back online.

  • Cloud save

    Sign in with Google and pick up your journey on a new phone without losing a step.

  • Leaderboards

    Compete with other explorers and see who’s leading the restoration.

Coming to Android

Riverquest is in active development. The first quests are live along the Danube in Vienna — the app lands on Google Play soon.

Google Play Soon