Start at Earth. Explore the Solar System, chart nearby stars, and plan what comes next. Expanse combines a 3D map built from astronomical catalogues with a space-program simulation and a science-fiction story. EXPLORE THE SKY Search for stars and exoplanets, inspect planets and moons, and zoom out to nebulae, galaxies and the cosmic web. Browse spacecraft and station models. Scientific measurements, estimates and imagined worlds have different roles in the game; the alien civilisations and future technologies are fiction. RUN A SPACE PROGRAM Research propulsion, launch probes, send messages and plan crewed missions. Distance changes every decision: a probe can arrive long before its news reaches Earth. Compare a traveller's time with the years passing at home. CHOOSE YOUR ERA Begin with present-day technology and build toward interstellar exploration, or jump into the Far Future to crew a ship in a setting with fictional faster-than-light travel. Gather evidence about other civilisations and follow a story whose replies may take decades to arrive. LOOK AND LISTEN Explore telescope views and Hubble and Webb imagery. Listen to selected NASA recordings and astronomical sonifications, with source credits in the app. Streamed images require an internet connection; built-in images remain available offline. Your saved games and settings stay on your device, subject to your device's backup settings. No account, advertising or in-app purchases. Telescope views and higher-resolution images connect to external astronomy services when you use those features. Source acknowledgements and licences are available under Menu > Credits & licences. Scientific organisations and image providers do not endorse Expanse.
Games:Simulation · iPhone, iPad, Android · Free
