Like watching slime mold spread or fruit decay in fast motion — that
"fixed-camera life unfolding" feeling, in your palm. 47 forms + daily
5-move puzzle.
Dot.Entity
You tap. Cells are born. They spread, collide, change shape — the
way a short video captures mold growing or fruit decaying. That
kind of quiet time-lapse, in your palm.
Each cell becomes the seed of a structure no one can predict.
Watch it unfold.
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[ What you can do ]
・1-minute tutorial covers the four B3/S23 rules
・Tap the board to drop random presets (Glider, Blinker, Block...).
First 10 taps follow a curated sequence so motion is immediate
・47-entry Lexicon (23 still lifes, 20 oscillators, 4 spaceships)
auto-populates as you discover patterns. Each entry carries its
discovery year, discoverer, historical significance, and trivia
・COMBO mechanic — the longer motion sustains, the higher the
counter climbs across 9 distinct tiers (color / sound / haptic).
At the top tier the HUD pulses in rainbow
・Dramatic sessions auto-save to REPLAYS (combo peak ≥ 300). 16x
time-lapse playback, Shannon entropy graphs, and automatic key-
moment markers let you analyze past evolutions
・PLAYGROUND for designing your own patterns (up to 50 saved).
EDIT supports finger-drag continuous drawing, each cell ringing
a pentatonic note. 5 practice challenges (Block, Glider,
R-pentomino, Acorn, Diehard)
・"Today's Challenge" — daily 8x8 puzzle, clear within 5 moves.
Optional hints. 7-day sparkline with streak counter
・Share moments as text or image. Photo-library permission is
requested ONLY if you choose "Save Image" from the share sheet
・Glossary with 35 English terms — still life, oscillator, spaceship,
methuselah, Glider Gun, Universal Constructor, Moore neighborhood,
chirality, puffer, Turing completeness, and more. 14+ terms
include live preview animations. Daily-rotating trivia card
・26 achievements (Discovery 6 / COMBO 8 / Daily 7 / Meta 5).
Stats panel + "Coming up" progress panel. 3 "hint-free clear"
achievements give the Daily Challenge a self-best axis
・Daily streak counter with personal-best record
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[ Made for ]
・People who enjoy fast-motion videos of natural processes
・Anyone curious about Conway's Game of Life or cellular automata
・Fans of digital fidgeting and tactile interfaces
・Commutes, waiting rooms, winding down before bed
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[ Design principles ]
Zero in-app purchases, ads, social features, or data collection.
Fully offline.
Sensory-friendly: haptic / audio / visual intensity each adjustable
per-axis (off / soft / medium / strong). Auto-detects iOS Reduce
Motion and Reduce Transparency. Full VoiceOver support.
Predictable, low-stress: all rules in the 1-minute tutorial, no
hidden mechanics, no failure states, no time limits. Daily
Challenge hints are opt-in.
Collection-first: 47-form Lexicon + 26 achievements make "collect
them all" the primary axis. Instant tap reward — haptic + visual +
audio fire together.
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[ About cellular automata ]
Conway's Game of Life, announced by mathematician John Conway in
1970, is the most beloved cellular automaton in the world. From
four simple neighbor-counting rules emerge spaceships, oscillators,
glider guns, even Turing-complete computation. For over 50 years
enthusiasts have discovered new patterns — Glider Gun (Gosper
1970), Pulsar (Conway 1971), Eater 1, Pentadecathlon, LWSS, MWSS,
HWSS — all included here with their historical context.
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The developer, MASATOSHI FUJIMOTO, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
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