Drift — expanding ripples in dark water
Drift · endless

Drift

"Stir the dark."

The heart of Zen Pool. An endless, goal-free pool with no timer and no way to lose. Tap to drop a stone; drag to draw a wake whose speed and strength follow your finger. Bubbles rise on their own, catch the light, and drift on a slow tidal current.

Drift is also the only mode that changes the longer you play. Stay still and the whole sea slowly descends, dark-adapting through a sequence of palettes — and it remembers how deep you've ever been. (See how Drift evolves below.)

Breathe — a calm guided-breathing circle
Breathe · calm

Breathe (Tidal Breath)

"Breathe with the light."

An endless guided-breathing meditation — no bubbles, no score, no way to fail. The whole abyss swells and brightens as you breathe in, then sinks toward black as you breathe out. A concentric ring and a single word — breathe in, hold, breathe out — keep you in time, with a soft pulse of haptics at the turn of each phase.

Tap the toggle in the bottom-left corner to pick the pace that fits the moment. It starts on Calm and remembers your choice:

Calm · default

Coherent breathing

~5.5 s in, 5.5 s out (about 5.5 breaths a minute), in one smooth, unbroken wave — no holds.

For winding down. This slow, even pace is the rhythm research ties to the strongest heart-rate-variability response — easing the body into "rest and digest." Best for unwinding or settling toward sleep.

Box · focus

Box breathing

Four equal 4-second phases — in, hold, out, hold — with hold shown on screen and a haptic at each turn.

For focus and steadying a stress spike. The held breaths build composure — the technique divers, athletes and first responders use before a high-pressure moment.

Descend — sinking into the deep
Descend · deep

Descend (Deep Dive)

"How deep can you sink before time runs out?"

Here, calm is the game. You have 90 seconds, and stillness sinks you deeper — your score is the number of "fathoms" you reach. But the bubbles crowding the surface buoy you up, so you have to clear them (big ones shed the most) without thrashing.

Every pop is progress and a cost at once: it clears buoyancy but counts as activity that slows your descent. The trick is an unhurried, economical hand. Your best depth is a ratchet — a careless rise costs you time, never your record.

Fuse — colourful bubbles merging
Fuse · color

Fuse

"Merge the light."

An endless mode built around colour. Bubbles surface in primary hues; when two drift together and merge, they average into a new colour — and a freshly fused light is worth more than the parts that made it.

It's a relaxed puzzle of nudging the right lights into each other with your ripples, watching the palette of the pool shift as you go. Like Drift, it never ends.

Echo — four glowing orbs to remember
Echo · memory

Echo (Echoes)

"Watch the lights, then tap them back."

A soothing memory game. The bubbles pulse out a growing sequence of light; you tap it back. The sequence lengthens as you go, but a miss simply replays gently — it never punishes. A quiet test of attention with all the edges sanded off.

Weave — drifting star-bubbles
Weave · stars

Weave (Starweave)

"Trace the stars into a constellation."

Drifting star-bubbles wait in the dark. Trace one unbroken stroke through every one and they snap into a constellation that blooms and re-scatters. Lift your finger, or double back to a star you've already linked, and the thread breaks.

No order to memorise, no timer, no fail state — just the satisfying line-drawing puzzle of finding a single path through the scattered light.

Dive — the challenge ladder
Dive · game

Dive

A ladder of twelve timed challenges.

When you want a goal and a high score to beat, Dive is the arcade heart of Zen Pool — short, flavourful rounds (mostly 60–75 seconds) each with their own rule. Every challenge keeps its own personal best. They're listed in full below.

The long descent

How endless Drift evolves

Most fidget toys look the same in minute ten as in minute one. Zen Pool's endless modes don't. The longer you let the water settle, the deeper the whole sea sinks — and the deep is a different world at every level. A full descent takes roughly 16 minutes, lerping continuously through six palettes of water and bioluminescence.

Twilight

Deep teal-blue water lit by clean cyan bioluminescence — the shallow, welcoming surface where every session begins.

~0 minutes · the surface
Bloom

The water cools to teal-blue and the glow brightens — bioluminescence at its most vivid before the colour begins to turn.

~3 minutes down
Midnight

Indigo and violet take over, with a comb-jelly prism shimmer on the light. The surface world feels far above you now.

~7 minutes down
Abyss

Near-black water broken only by a magenta glow and the gold flicker of an anglerfish-style lure. The deep gets strange.

~11–12 minutes down
Stillness

True near-black, with a soft cyan-violet aurora drifting through it. The audio thins to something quiet and womb-like.

~14 minutes down
Bioluminal

The deepest dark — genuine black lit by an intense cyan-violet glow. A look reserved for the final minutes of a long, patient descent.

~16 minutes down · the floor

Dark adaptation

A calm meter quietly tracks your hand. Stillness restores it and lets your eyes adapt to the dark; a flurry of frantic input spends it. Calm is rewarded — thrashing is simply un-bonused, never penalised.

Wandering accents

A second, slower clock (about every 6½ minutes) shifts the accent colours independently of depth, and a gentle tidal current pushes the bubbles around — so the same depth never looks quite the same twice.

It remembers you

Your deepest-ever reach is saved on your device, in a "Depths" dive-log. Come back and you start a touch deeper — already dark-adapted — but never at the very bottom. There is always more to sink into.

The world even knows the hour: Zen Pool reads your phone's local clock and runs a little cosier and dimmer at night, brighter by day. (That reading happens entirely on-device — see the Privacy Policy.)

Dive · the challenge ladder

Twelve ways to chase a score

Each Dive challenge reskins the same pool with a single, clear rule and a personal best to beat.

Pop Frenzy

Pop as many bubbles as you can before the clock runs out.

Big Trouble

Pop only the large bubbles — leave the small ones be.

Small Fry

The opposite: pop only the small bubbles.

On The Brink

Patience play — pop each bubble in the last moment before it fades.

Embers

Pop the golden bubbles only; leave the cool ones glowing.

Echo Bloom

Tap the dark — an expanding ring of light ignites the bubbles it reaches.

Lantern Line

Draw one glowing stroke; runs of the same colour score highest.

Cascade

Pop a cluster and the light chains outward through its neighbours.

Twin Lights

Pop two of the same colour in quick succession for a twin bonus.

Tide Pool

Tap to push — herd the drifting bubbles into the luminous basin.

Pulse

The bubbles bloom on a beat; pop them on-beat for an escalating run.

Crossfire

No bubbles at all — your score is born where ripple wave-fronts cross in the dark.

Pick a current and sink in

Every mode is in the one app — open Zen Pool and the orbs are waiting on the title screen.