
Real buildings, real height
More than forty thousand buildings from OpenStreetMap, each extruded to its measured height and roof shape.
A free 3D game in your browser
Ride the real city. Every building at its measured height, every hill at its real grade, from the Ferry Building to the Golden Gate.
Instant San Francisco rebuilds the northeast of the city from open map data and real elevation, then hands you a bike. Climb Nob Hill, coast down to the Embarcadero, roll out along Crissy Field to the bridge. No downloads, no sign-up.
Features

More than forty thousand buildings from OpenStreetMap, each extruded to its measured height and roof shape.

The terrain comes from USGS 3DEP elevation. On the bike, a 17% grade on Hyde Street really does slow you down.

Ride a bike, push a skateboard, walk, or flop along the Embarcadero as a sea lion from Pier 39.

Fog rolls in through the Gate and swallows the towers. Clear afternoon, foggy morning, it’s up to Karl.

A full day cycle with the sun where it should be over the Bay, and thousands of lit windows after dark.

Cable cars creep up the Powell and California lines at cable speed. Press E next to one to jump on the running board and ride it over the hill.

Traffic that stops at working signals, people on the sidewalks, sea lions on the Pier 39 docks, ferries and sailboats on the Bay, and street lamps that come on at dusk.

Race three rivals over the hills with fortune-cookie power-ups, beat the clock on five missions, or sit back for a 13-stop tour from a foggy dawn at the Golden Gate to night over the skyline.
Greenwich Street, Russian Hill
Gravity is real here. So is the view from the top.
Guide
Runs in any modern browser. Best with a keyboard on a laptop or desktop.