Rill is a calm, offline flow-connect puzzle about guiding water through mossy stone.
Every board hides pairs of coloured droplets. Press one and drag your finger to carve a glowing channel across the grid until it reaches its twin. Simple to start — but there is a twist that keeps it interesting: you only win when every pair is linked AND every single cell is filled with water. No leftover stone, no shortcuts. One hundred percent flow.
That "fill it all" rule turns a quick connect game into a satisfying spatial puzzle. The obvious straight line between two droplets is almost never the answer. You will loop, weave and double back to leave room for every other stream — and when the last cell finally floods, the whole board comes alive.
Nothing here is permanent. Drag back over your own channel to cut it short. Drag across another colour and it politely gives way. Experiment freely until the water sits exactly right.
FEATURES
- Twelve hand-made puzzles that grow from a gentle 5×5 up to a knotty 8×8.
- A new Daily Rill every day — one fresh board to solve, chosen fresh each morning.
- Three-star scoring that rewards clean, confident solving: link each colour in a single stroke for a perfect run.
- Progress, stars and awards to chase, from your First Source to becoming a Delta Master.
- A soft, luminous look — multi-colour water streams flowing over dark slate, drawn entirely with smooth vector graphics.
- Gentle haptic feedback when a channel connects and when a board is complete.
CALM BY DESIGN
- 100% offline. No internet connection required or used.
- No ads. No pop-ups. No paywalls.
- No accounts, no sign-up, no tracking, no data collection.
- No sound at all — play it anywhere, any time, in silence.
Rill is made for quiet moments: a few minutes in a queue, a wind-down before sleep, or a long unhurried session chasing three stars on every board. Just you, the water, and the stone.
Pour, weave, and flood the board. Let it flow.
Draw water channels to link every droplet and flood the whole board. Offline.