Rillgate: Pipe Puzzle

A pipe-rotation puzzle with live water: turn copper pipes so the spring reaches every flower, then open the sluice early for stars and keep turning ahead of the flowing water. 18 gardens. Free, no ads, no tracking; tap or keyboard.

A spring sits in an old walled garden and every flower bed is thirsty. Rotate the copper pipes until one network carries water from the spring to every flower without a single open end.

The twist is the sluice. Its timer counts down while you think; open it early and you keep more stars. Once it opens, the water runs visibly tile by tile, and you may keep turning pipes the water has not reached yet. Reach an open end and the garden floods.

• 18 gardens: generated from fixed seeds as random spanning trees and checked solvable, from 5x5 up to 9x9
• Live water: tiles lock as the water reaches them; race it to fix the last pipes
• Stars for time left: open the sluice with 40% of the timer left for three stars
• Leaks and dry beds: an open end or a flower left dry loses the garden; before the sluice opens, pipes linked to the spring show a thread of water and their open ends are marked
• Keyboard or touch: cursor and keys, or tap to rotate; progress and stars are saved

Code and text written with AI assistance; checked by PN Scripts with automated tests. Every shape is drawn and every sound synthesised by code; there are no AI-generated image or audio files.

Controls

• Arrow keys / WASD: move the cursor
• Space / Enter / E: rotate clockwise, Q: rotate back
• F: open the sluice
• [ and ]: switch between unlocked gardens
• Tap a tile: rotate it; on-screen buttons for the sluice, rotate back and gardens
• P / Esc: pause, M: sound

Made by PN Scripts.