Coaster Builder
Draw a roller coaster with your finger and send the riders off. Real physics decides if it's a thrill ride, a sick ride, or a ride where everyone flies out.
Play nowHow to play


Controls
TapDrag- Drag from the blue station to draw track and finish at the flag.
- Dots preview the forces.
- Tap RIDE.
- Hit the thrill goal without making riders sick.
About the game
Coaster Builder is a drawing puzzle with real ride physics. Each park has a start station, an end platform with a flag, and a budget of track. Drag from the station to sketch the ride, then tap RIDE and watch the cart roll under gravity, speeding up on drops and slowing on climbs. Draw too high and it stalls and rolls back.
Riders feel every curve. Sharp dips push them into their seats, and crests at speed lift them up for airtime, which they love. Push too hard, though, and they black out or fly right out of the cart. Loops only work if the cart is fast enough at the top. Each park asks for a thrill score, a nausea limit, and sometimes loops or rings to pass through. Coloured dots along the track preview the forces before you ride. Twelve parks, three stars each.
Free to play in your browser. No download, no sign-up. Best on a computer, or a phone held sideways. Your progress is saved on this device.











