A free 3D game in your browser

Instant San Francisco

Ride the real city. Every building at its measured height, every hill at its real grade, from the Ferry Building to the Golden Gate.

Free · no account · nothing to install

A city you can ride through.

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.

40,000+buildings, at measured height
1,000+named streets
11,000street trees
28sights with a story

Features

What’s in the box

The game
Aerial view over Telegraph Hill and North Beach towards the Bay, rendered in the game

Real buildings, real height

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

A cyclist riding down California Street towards the downtown towers

Hills you can feel

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

A skateboarder on the tree-lined sidewalk of Steiner Street by the Painted Ladies

Bike, board, feet or flippers

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

Thick fog over North Beach with Coit Tower rising out of it

Karl the Fog

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

Downtown at night seen from Nob Hill, thousands of windows lit

Day and night

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

A cable car climbing a hill street between parked cars, traffic signals and street lamps

Hop on a cable car

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.

Pedestrians on a sidewalk and cars waiting at a signal on Hayes Street

A city that’s awake

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.

A cyclist on the Bay to Breakers mission weaving between runners on Hayes Street, the timer and guiding arrow at the top

Races, missions and a tour

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.

Riding a bike up a steep Russian Hill street at dusk, the in-game HUD showing the street name and grade

Greenwich Street, Russian Hill

Gravity is real here. So is the view from the top.

In-game: the HUD shows the street, the neighbourhood and how steep it gets.

Your bike is waiting.

Runs in any modern browser. Best with a keyboard on a laptop or desktop.