Floating marble ruins above a sea of clouds.

Run and ride the wind-launch pads to the Sun Gate — or fly between the temples: hold to climb, release to dive.

A vertical megacity inside a violet storm.

Storm Drive — hold to charge and climb, release to dash through the storm gates.

Moonlit ruins, wisteria and a gravity you can ride.

Gravity Tether — hold to pull up, release to fall.

Kyoto in paper, ink and gold leaf, from Togetsukyō to the Golden Pavilion.

Fold — hold to fold small and charge, release to leap.

Down through Kiruna's iron mountain to the machine heart it hides.

Pulse Charge — hold to charge, release on the heart's pulse to leap.

Stockholm's metro after the last train, from T-Centralen's blue cave to Kungsträdgården.

Momentum — tap to jump, tap in the air to dash; momentum is speed.

Bråviken's cliffs at sunset, the Safari gondolas, the rope bridges and the Wildfire coaster's timber.

Swing — hold to grab an anchor and swing, release to fly on.

Head first down a three-lane water slide: Big Drop's trap doors, Waka Waka's rafts and the timber of Gruvbanan.

Slide lanes — tap a side to change lane, swipe up to jump the open water.

Over the old town's roofs at night: up Mårten Trotzigs gränd, over Prästgatan's chimneys and up the tower of Tyska kyrkan.

Wall jump — tap to jump, tap at a wall to kick off it and climb.

A special mode: Aurora 21 comes home from the edge of space — over the aurora, through the storm and down to Arlanda's lit runway at dusk.

Fly & land — a real flight simulator: tilt or keys to fly, flaps, gear and air brake, engines and the tower on the radio; the touchdown is scored with a rank.

The western town at night: the old mine's rails glow through the sleeping street — into the saloon, over the water tower, round the paddle steamer, up into the mine.

Rail switch — the cart rolls itself; tap to throw the next switch, the glowing one.

Skrea strand on a faded old postcard whose shoreline moves: the sea breathes in and out over the dunes, and the broken boardwalk is laid plank by plank, from Tullbron to the pier at dusk.

Boardwalk — hold at the edge and the plank grows; let go and it falls across the gap.

Inside the sphere at night, where platforms hang that should not and there is no up: along the red stands, over the ice, across the concert between its lasers and through the swinging rig, to the top of the Sun.

Gravity flip — tap while you stand and down becomes up; the dome turns with you.

Åreskutan at night, its floodlit slopes going dark one by one under a storm: down through glowing gates, the forest and its crests to the square in the village by the frozen lake, the aurora overhead.

Carve — hold to carve left, let go to carve right; the skier always turns, through every gate.

The park on Djurgården after closing: dark, and one coaster still running by itself — the rides wake around it in blue and pink as it passes, and Stockholm's lights shine across the water.

Polarity — the car runs itself; tap to swap its light, blue through blue gates, pink through pink.

The last train of the night out of Stockholms östra: the departure board flickers, and the narrow-gauge train runs north through Roslagen's snow, its lit windows streaking through the forest, a stranded carriage waiting at every dark station.

Driver — one pedal: hold to brake, let go for power; stop inside the platforms, never pass a red.

The Icehotel by the frozen Torne river, seen from above at night: the aurora pours through the ice ceiling, frost grows in from the walls and the ice sculptures turn their heads to watch you slide past.

Ice floor — swipe and you slide until something stops you; beat the frost, hall by hall.

Under the new Slussen at night the city's camera sees the water running the wrong way through the locks: chambers filling and draining by themselves, the old town's spires behind the lit levels of the city.

Waterline — the boat drifts by itself; hold to let the water in and lift it, let go to hold the level.

Varberg Fortress on the sea at sunset — and the same fortress as an old photograph, storm surf against its walls. Its cannons wake, and the photograph comes alive in colour behind the runner they fire from bastion to bastion.

Cannons — nobody runs: tap to fire the cannon you sit in, where its barrel points now.

After closing the security log shows the empty mall — glass balconies, the escalators' light strips, the atrium dark under its hanging light — and something moving on a balcony.

Shadows — you run by yourself; hold to stop and hide behind cover as the cameras' light sweeps over, let go to run.

Visby's ring wall at sunset over the Baltic — and the same wall as an old map of the town. When Medieval Week's drums begin, the map wants its towers back, one on every beat.

Beat — the runner walks the wall to the music; tap on the beat as the lantern meets a tower to ink it onto the map.

The power goes in Täby Centrum — the emergency lights, the escalators' strips, the shutters coming down — and only a generator holds time back.

Time hold — you run by yourself; hold to slow the shutters, lifts and escalators to a quarter while the generator drains, let go and time runs.

The storybook town in Vimmerby, built at one third of full size, on a summer evening — and the whole town is a toy in a giant hand.

Turn the town — the child walks by itself; tap to turn the town a quarter turn and the wall ahead becomes the floor.

Gothenburg's park after closing, every ride dark — and one coaster car loose on Balder's wooden hills, still running by itself.

Coaster — the car rolls by itself; hold to dive heavy down the slopes for speed, let go to soar off the crests.

After midnight under KTH's campus the machines run their night shift — carts, robot arms, belts and laser sheets in lanes across the labs, down to the R1 reactor hall.

Crossing — tap to step forward, swipe or tap a side to step aside, one cell at a time across the machines' lanes.

Race 67 round Riddarfjärden at sunset — eight hovercars on a glass-walled track over the water, past City Hall, Riddarholmen and Söder's cliffs, two laps for points, or three with the slowest out at every line.

Hover race — steer by tilt, the on-screen wheel or the keys, boost on the straights, brake before the curves (or AUTO: one touch, the car steers itself); a podium to win.

Race 67 through central Stockholm at a pink sunset — from Karlaplan down Karlavägen, off the edge into the Plattan, through T-Centralen's blue cave under the city and up into Kungsträdgården's cherry trees in bloom, two laps.

Hover race — steer for the coins spread over the deck, boost on the straights, fly the five big jumps (or AUTO: one touch, the car steers itself); a podium to win.

Race 67 round the Thames at dusk in the rain — from Westminster Bridge under Big Ben, down into the Underground, up at St Paul's through the City and over Tower Bridge's raised bascules, two laps.

Hover race — six jumps a lap at 410 km/h, steer for the coins spread over the deck, fly over Tower Bridge's gap (or AUTO: one touch, the car steers itself); a podium to win.

Race 67 through Dubai from the desert and back — down Sheikh Zayed Road, round Burj Khalifa, through Dubai Frame, an aquarium's glass tunnel and Palm Jumeirah, two laps into a sandstorm.

Hover race — the fastest straights yet past 420 km/h, six jumps a lap, the big one through Dubai Frame (or AUTO: one touch, the car steers itself); a podium to win.

Race 67 through Swedish Lapland in the polar night — off the frozen Torneträsk, through the U of Lapporten, over Abisko's frozen waterfall, down into a blue ice cave, past the Icehotel by the Torne river and down into Kiruna, under the northern lights, two laps.

Hover race — long straights and gentle corners at 410 km/h, steer for the coins spread over the deck, fly the big jumps through Lapporten and over the waterfall (or AUTO: one touch, the car steers itself); a podium to win.

Race 67 through Rio de Janeiro at sunset — from Copacabana's wave promenade up to the Sugarloaf's crest, over five rooftops in a row in Santa Teresa, along the Arcos da Lapa, round inside the Maracanã and down the carnival's Sambódromo, two laps.

Hover race — seven jumps a lap at 410 km/h, steer for the coins spread over the deck, fly off the Sugarloaf's crest (or AUTO: one touch, the car steers itself); a podium to win.

Race 67 through a cartoon villain's rusting harbour at night in acid rain — the container maze, under the giant cranes, along the refinery's pipeline past the flare, deck to deck over the tankers and the magnet crane's throw, two laps.

Hover race — the hardest: single file through the maze, seven jumps a lap, steer for the coins spread over the deck (or AUTO: one touch, the car steers itself); a podium to win.

Race 67 through New York at the blue hour — from Times Square's screens up the Empire State Building's facade and off its edge, under the East River in the subway, back over the Brooklyn Bridge and through Central Park in autumn, two laps.

Hover race — steer for the coins, boost on the straights, fly the big jumps off the Empire State and over Bow Bridge (or AUTO: one touch, the car steers itself); a podium to win.

Race 67 "Harbour Lights" through Hong Kong at night — from the Tsim Sha Tsui promenade over Victoria Harbour through the light show's lasers, up the Mid-Levels and off Victoria Peak, through the hole in Repulse Bay's wavy tower and home through the tunnel, two laps.

Hover race — steer for the coins spread over the deck, boost through the lasers' pads, fly the big jumps off the Peak and through Repulse Bay (or AUTO: one touch, the car steers itself); a podium to win.

Race 67 through Tokyo at night in the rain — over Shibuya's scramble crossing, up the Ohashi spiral, down into the neon alleys, past Tokyo Tower and off the Rainbow Bridge to Odaiba, two laps.

Hover race — steer for the coins spread over the deck, boost up the spiral and down the straights, fly the big jumps (or AUTO: one touch, the car steers itself); a podium to win.

Race 67 through a compressed Japan in an autumn sunset — up through the thousand torii, over the Golden Pavilion's pond, down the road to Fuji and off the bullet train's viaduct over a sea of cloud, two laps.

Hover race — steer for the coins spread over the deck, boost up the torii tunnel and down the mountain, fly the big jumps (or AUTO: one touch, the car steers itself); a podium to win.

Race 67 through Zon 67, an invented old town that nature has taken back, under the full moon — the rusty fairground, a jump through the great wheel's hub, the glowing pools, a whole turn up the inside of the old water tower, the barges on the canal and the forest road home, two laps.

Hover race — steer for the coins spread over the deck, boost up the water tower and down the straights, fly the big jumps (or AUTO: one touch, the car steers itself); a podium to win.

Stockholm's inner waters in lockdown at sunset — the armoured boat runs from Saltsjön past Skeppsbron and under the bridges at Slussen to the extraction point on Riddarfjärden, through mines, drone boats, gunships' strikes and hidden submarines.

Sea strike — seen from behind, steer through the gates, boost, panic-brake, and use the gun, torpedoes, flares and the sea drone.

Seabird 50 comes in at sunrise to Princess Juliana on Sint Maarten — down six neon gates, low over the crowd on Maho Beach and onto runway 10.

Fly & land in tactical mode — steer and pitch by hand, flaps and gear on the call, skim the beach and touch down clean for a rank.

Neon 34 comes home at night through a thunderstorm over Tokyo Bay — vectored onto Haneda's ILS as the instruments fail.

Fly & land in tactical mode — steer and pitch by hand, hold the wings level in the storm, trust the runway's lights and touch down clean for a rank.

Atlantic 82 comes in at sunrise down Madeira's cliffs in an Atlantic crosswind — over the cliff's edge onto the runway that runs on out over the sea on 180 columns.

Fly & land in tactical mode — choose the wind, crab into it, then the rudder straightens the nose onto the runway just before the wheels touch.

Alpine 412 comes down the Inn valley at sunset to Innsbruck — eleven neon gates between the peaks, the ridges' downdrafts, and runway 26 among the city's lights.

Fly & land in tactical mode — pick the weather, thread the valley by hand, ride out the drafts and touch down on the centreline for a rank.

Dragon 11 comes in at sunset to Paro in Bhutan — down the valley between the ridges, through five gates, on one good engine, onto the short runway 15.

Fly & land in tactical mode — thread the pass, trim out the failed engine by hand, and set the failures and the weather yourself for more points.

Southern 44 comes up the valley into Queenstown at sunset — the hydraulics on backup, engine 2 weak, the mountains close on both sides, down to runway 23 by Lake Wakatipu.

Fly & land in tactical mode with failures — gear down by gravity, flaps two max, trim against the weak engine; choose your failures and weather for the points.

The T67 TITAN comes back at a storm's dusk over the North Atlantic to the supercarrier CVN-67 — the deck heaving, the traffic ahead, the hook down for the three wire.

Fly & land in tactical mode — steer and pitch by hand, lower the arrestor hook, fly the ball onto the moving deck and trap for a rank; set the wind, the weather, the sea and a failure yourself.

The last world. Where everything began.

Revealed later.