Siphon: Spiral Down

The ball spirals toward the hole. You keep it alive with one thumb.

Siphon is a calm, endless arcade game. A glowing bowl turns under a golden ball, seen flat from above. The ball spirals down on its own, faster and faster; slide up or down anywhere on the screen to move it closer to the hole or back toward the rim, and slip between the coral arcs that turn with the bowl. Every five seconds the ball plunges into the hole, a flash, and a new funnel opens in a slightly different shade. Funnel after funnel, without end.

One gesture, one rule

• Slide up or down anywhere: the ball follows your thumb one to one, no inertia, no button, no timer, no lives
• Only one thing ends a game: the ball hitting an arc head-on. Brushing along an arc never does
• The last third of every funnel is empty: no arc, just the rush toward the hole and the plunge
• A game ends? A new one starts at once, at the edge of the same funnel, no screen in between
• The speed you see is not the difficulty: arcs always arrive at the same calm pace, only their layouts and the colours change
• Every layout is checked so that a rough correction every two or three seconds is enough

Relax and let it flow

• A soft rolling sound that seems to rise forever, a quiet tick when an arc goes by, a quarter second of silence before each plunge
• One strong vibration at the plunge, nothing else (an optional light tap per arc in Settings)
• Score: one point per arc passed, nothing else on the screen