Frederick: Subway King

King Frederick the Third is a sad King. A soldier captured his Queen in battle and took her to the end of the subway, so now Frederick must run forever to reach her. He is also a fish. A flat, painted fish in a 3D subway.

How to play

• Swipe left or right (or use the arrow keys) to change lanes.
• Swipe up to jump over barriers and swipe down to slide under overhead bars.
• Run up the ramps to surf on train roofs. Landing on top of a train is safe; hitting its front is not.
• Double-tap, press Space twice, or press E to ride a hoverboard. It breaks instead of you when you crash.
• Collect coins and grab power-ups on the tracks.

Fifteen worlds

Each run flows through fifteen worlds:

• Royal Tunnel: trains, ramps and barriers.
• Royal House: climb staircases up to upper floors and run along the landings while furniture blocks the ground floor.
• City: a real street with no train tracks. Dodge cars and angry Road Ragers that switch lanes to chase you, and never run into the lane of the armed pedestrians on the crosswalks, because they shoot.
• Frostbite Mountain: angry snowmen on the roadside hurl giant rolling snowballs down your lane. Jump them or dodge.
• Whispering Forest: trees beside the track tip over sideways. Jump over the low ones and duck under the tall ones.
• Dry Fin Desert: cactus rows and rolling tumbleweeds.
• Sunset Coast Bridge: trains on a bridge over the sea.
• Candy Kingdom: giant gumdrops fall from the sky.
• Mount Magma: lava pools and falling lava bombs.
• Haunted Castle: ghosts drift across the lanes to haunt you.
• Jungle Ruins: palm trees topple across the path.
• Coral Reef: underwater, with floaty slow-motion jumps.
• Sunny Farm: tractors on a dirt road and hay-bale fences.
• Space Station: meteors rain down on the station rails.
• Neon Arcade: glowing laser gates and trains.

Custom mode

Pick which worlds you want to run through, and your run cycles only through the ones you picked.