Tideglass Studio
LV 0
Dust Mote

A Tideglass Studio game

Accretion

Clash of Planets

Start as a speck of dust. Absorb what is smaller, dodge what is bigger, and grow into a living world.

Browser play needs a free Tideglass account and is opening in stages. Android is the quickest way in right now.

Free · Real-time · Android and web

See the eight stages
In-game footage, drawn by the game's own renderer

Out now

Play Accretion on Android

The native Android app is live on Google Play, free. On a computer, scan the code with your phone and the listing opens there. Google Play Games signs you in the first time you open the game.

Get it on Google Play

No account needed

QR code. Scan to install Accretion from Google Play

Scan to install

Accretion is a real-time game of cosmic growth. You start as a mote of dust and grow by absorbing everything smaller than you. Touch anything bigger and it breaks you apart and costs a life. Each time you evolve you gain skills that stack for the rest of the run, so every run builds differently. The climb runs from LV 0 to LV 10: eight stages from dust to a living world, then three levels past it. It starts gentle and gets hard quickly.

Version 0.3.0

More to do with your mass

Absorbing and dodging carry you the whole way. From LV 2 the game adds a second layer on top of them, and it grows with every level after.

Burn

LV 2
A Boulder burning clear of a bigger world, a trail of embers behind it.Speed for mass

Push past the thumb pad's outer ring, or hold Shift on a keyboard, and you spend a little mass for a burst of speed. Hold it past two seconds and it heats up and costs more.

Skim

LV 2
A Planetesimal passing close beside a world far too big to eat.Tidal Charge

Pass close to a body too big to eat without touching it and your Tidal Charge fills. The charge pays for a burn before your mass does.

Throw a moon

LV 3
A thrown moon in flight between the player's planet and a rival world.Shepherd

Take Shepherd and tap its button, lower right, to pull a body into orbit. Hold it past a quarter second to arm your outermost moon, then release to throw it.

Break a world

LV 4
A ring of light and fresh debris where a rival world has just shattered.Fracture

A hard throw breaks material off what it hits. Two solid throws in a short while shatter most rivals into debris anyone can eat, and a fast ram breaks a near-equal instead of you.

Read the sky

From LV 1
A Rogue World with a red rim crossing a crowded field.Cosmic events

Comet streams, debris blooms, gravity wells, solar wind, rogue worlds and moonfall arrive with a warning and an arrow pointing to them. One Cosmic Cycle a week, the same for every player, changes a part of the game for that week.

Your world awakens

LV 8
A gold ring spreading from a Living World as it awakens.A name of its own

Your world takes a name from the paths you invested in most: Storm, Fortress, Orbital, Massive or Accretor World, a hybrid such as Storm and Fortress World, or a Balanced World.

Reach

LV 10
A Living World at LV 10 with the bodies near it falling inward.Active

Hold the Shepherd button about a second, then let go. Everything near you falls inward, and what fits, you keep.

Six rivals

Every run
The rivals VESPER, KORATH and NYX in the field around the player's planet GAIA.Named worlds

Every run has six named rivals, each with a temperament of its own. KORATH hunts, VESPER waits in cover, OLM is hard to break, CINDER goes after moons, NYX scavenges and RHEA keeps moons of its own.

Two ways to play

Install it on Android, or open it in a browser.

Play on Android

Free on Google Play. The game signs in with Google Play Games by itself, so there is no account to make and no password to remember. Your world is kept in Play Saved Games, which means a new phone picks the run up where the old one left it. Your score goes to two Play leaderboards, KNOWN WORLDS and THIS WEEK, the moment a run passes your best and again at the run's end.

Get it on Google Play

Play on the web

The same game runs in a browser at tideglass.studio with no install, on the same 0.3.0 rules as the Android app. You sign in with a free Tideglass account instead of Play Games, and while access opens in stages you may be asked to request it first. Your world is tied to your email rather than to the browser, and your runs rank on the studio's own season board, where the server replays every run before it counts. You can also race the ghost of another player's recorded run.

Play in your browser

Playing on Android and not seeing your name on the board? Google makes every new Play Games profile private, and private players are not listed publicly. Set your profile to public and you appear.

The three-tap fix

Eight stages, dust to a living world

Eight stages, each one bigger and harder. The whole climb follows how real planets form, from a speck of dust to a living world. Tap any stage to read it.

A dust mote at LV 0, its shell ring around it and a trail of absorbed dust behind.
A Living World late in a run, three moon lanes around it and bigger worlds crowding the field.

Two moments from a run.

How to play

Steer, absorb, dodge and evolve. From LV 2 you also burn and skim, and from LV 3 you throw your moons.

Drift and steer

Drift and steer

Absorb and grow

Absorb and grow

Capture moons

Capture moons

Evolve

Evolve

Skills

Each time you evolve, a Signature is granted and you pick one of three Path cards. They stack over a run, and at LV 8 your world takes its name from the paths you stacked most.

Sticky Ice

PATH
Sticky Ice card artEat bigger
Eat-size threshold+12% per pick
Ceiling1.25× your size
Two picksgrazing shears bites off
Evolution offer, 1 of 3Stacks

Frost-coat your shell: absorb bodies above your weight.

Dense Core

PATH
Dense Core card artMore XP
All XP×1.30, then ×1.20, ×1.12, ×1.05 per pick
Ceilingnone, it compounds
Three picksknockback halved
Evolution offer, 1 of 3Stacks

Pack your grains tighter: more mass and XP per absorb.

Solar Wind

PATH
Solar Wind card artFaster
Thrust+25% per pick
Ceiling2× base
Three picksskims refund half your burn
Evolution offer, 1 of 3Stacks

Ride the stellar breeze: steer harder, drift quicker.

Cohesion

PATH
Cohesion card artShield
Toughness+0.5 per pick (cap 3×)
Shieldlethal hit → ½ life
Recharge45 sec ÷ toughness, min 15
Three picksa shockwave when it breaks
Evolution offer, 1 of 3Stacks

Bind against impacts: a shield cuts a lethal hit to half a life, then recharges faster each pick.

Shepherd

ACTIVE
Shepherd card artLV 3Active · Capture
Capturetap: pull a body into orbit
Cooldown3 sec
Moonsshield you & feed
Throwhold 0.25 sec, release
Throw cooldown4 sec
Offered from PlanetesimalOnceNeeds Gravity signature

Orbit a body that shields you and widens your pull.

The skills page has every card with its real numbers, Reach at LV 10 and the six Awakenings.

See all skills

Start growing.

Accretion is free. Install it from Google Play and it signs you in by itself, or open the same game in a browser with a free Tideglass account.

Out now on Google Play

Tideglass Studio

Accretion is free on Google Play and in your browser. Built on ZE.

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