A relaxing physics puzzle with cute glowing critters, a collection book and a cozy aquarium.

Drop a little glowing critter into the jar. When two of the same kind touch, they merge into a bigger one. Keep merging to climb eleven levels, all the way up to the Klunk. Fill the jar past the line and the round is over. Rounds are short, a few minutes each: a casual game to play a round or two at a time.

A DROP AND MERGE PHYSICS PUZZLE
- Real physics: critters roll, bounce, stack and settle, so every drop matters.
- One finger: drag to aim, lift your finger to drop.
- Chains and combos: one well-placed drop can set off merge after merge.
- Special pieces now and then, like a rainbow that merges with anything.

A COLLECTION BOOK
- Every level you create by merging is caught in your book.
- Now and then a critter comes out shimmering: a rare, purely cosmetic variant with its own sparkle and sound.
- Six glowing worlds to unlock by playing: the Glimmers, the Planets, the Snowglows, the Candies, the Embers and the Pumpkins. Each has its own colours, sounds and particles. The rules never change.
- Earn new looks for your jar, stage and book pages by playing, and choose the ones you like.

MEET 48 BUDDIES
- Every merge earns a pearl. Special moments earn star sand.
- Pearls and star sand open shells. Every shell holds a random new buddy who sits on the jar's rim and holds the next piece for you. Some shells also come as a gift while you play.
- Your first buddy is a gift: you choose one of three.
- 48 buddies in six rarities. No duplicates: every shell gives someone new. The chances for each shell are shown in the game, as a little jar and as exact numbers.
- Rarer buddies have small abilities of their own, from fireworks and echoes to a lantern that shows which pieces belong together.
- Spend pearls and star sand to upgrade a buddy through three levels.

A COZY AQUARIUM AND A DAILY JAR
- As you play, a reward path that never resets opens up an aquarium, a daily present and the Daily Jar.
- Your Glimmers swim in the aquarium, and you decorate it with things you earn by playing. Nothing in it needs feeding or looking after.
- The aquarium's pearl pool slowly gathers a few pearls over about a day, then simply stops.
- A small present for each day. Unopened presents are saved, up to 7.
- The Daily Jar: one jar for each date, the same for every player. Past days stay playable and give the same small reward.

CALM AND FAIR
- Pearls, star sand, shells and buddies are earned only by playing. None of them can ever be bought.
- KLUNK has ads: an ad between rounds (it can come after any round, at least 2 minutes of play apart; sometimes a short video) and, if the player chooses, an ad that rescues a full jar. Never personalised.
- One optional purchase, Remove ads, takes the ads away. It's in Settings → For parents.
- Plays offline too (then no ads are shown). No accounts, no chat.
- Your progress is saved on your device.
- No countdowns and no energy: you can always play.
- No streaks: skipping days never takes anything away, and nothing expires.
- There are small rewards for coming back: the daily present, the pearl pool and the Daily Jar. Nothing you have is ever taken away if you don't.
- After a longer session, and after the Daily Jar, the game suggests a good place for a break.
- Calm mode gives less shake, flash and hurry.
- Almost no reading needed. English and Svenska in the settings.

For all ages, and easy for younger players to pick up.