Help & support

On the Sign in screen, tap Forgot password? and enter your username or email. We'll email you a link to choose a new password; it works once, for an hour.

The link can only go to an email address saved on your account. If you haven't added one yet, do it now from the Add your email card on your home screen, so you're covered.

A guest can play right away without signing up, but lives in one browser or one app install. Clear that browser, or delete the app, and the guest's games can't be recovered.

A free account keeps your games safe and lets you play on any device. Create one from Me → Create free account (Me is the person icon at the top right of your home screen): your guest games move into it.

Sign in with the same username and password, in the app or at crazy10s.com. All your games are there, including the ones in progress.

Open Me, the person icon at the top right of your home screen, and edit Display name. The new name shows in every game that's still going; finished games keep the old one. Your username can't be changed.

To pick a picture, tap Avatar in the same place: choose a character and a colour, or keep your initial. Your opponents see it on their game list.

Open Me → Delete account and type your username to confirm. It's deleted right away, and you're signed out everywhere. Any game in progress against a person ends as a give-up.

Exactly what's deleted and what stays is in the privacy policy. Can't sign in? Email us from the address on your account.

Drag it from your rack to a square. Or tap the tile, then tap an empty square. Tap a placed tile twice to send it back, or tap Undo to bring them all back. When your tiles make a legal move, PLAY lights up with the points.

PLAY stays grey until your tiles make a legal move. Tap it anyway and it tells you why. The usual reasons:

• A line your tiles touch doesn't add up to exactly 10. Every line counts, across and down.
• The tiles aren't joined to each other in one straight line or connected shape.
• They don't touch a tile that's already on the board.

The full rules, with examples, are in How to Play.

Games have no clock: each player moves when they have time, so a game can take a few minutes or a few days. You'll get a notification when it's your turn. Once it's been their turn for an hour, you can send a reminder: open the game's … → Nudge on the home screen (once per turn). If you'd rather not wait, open the game's … menu on the home screen, or More → End game, to give up.

If the same game is open on two devices at once, only the one you opened last updates live. Go back to your games and open it again.

Guests can play a few games against other people. To keep playing, create a free account; your games come with you. Games against the Computer and Practice are never limited.

At midnight Eastern time (Toronto), the same moment for everyone. You get 3 tries and your best score counts. You don't need an account; if you make one later, your Daily scores move into it.

Tap Past puzzles under the Daily Puzzle card on your home screen. Every day is there with your score, the day's top score and the highest possible, and you can put each of those moves on the board to compare. Your streak, the days in a row you've played, is at the top; play today's puzzle before midnight to keep it going.

Anyone can also browse past puzzles on the website.

Yes. In a game, open More → Sounds on to mute them; tap again to bring them back. You'll also find it in Me → Sounds, and Tumble Tens has a speaker button. It's saved on this device only. The sounds also follow your phone's volume.

Solo levels you play at your own pace: a board, a rack of tiles and a set number of moves. The rules are the same as in a game, so every line you make must add up to exactly 10.

Open them from the Puzzles tab at the bottom of your home screen. You don't need an account.

Every level has three score targets, one per star. Reach the first one, and finish the level's goal if it has one (for example, use every tile), and you've passed: the next level opens.

Three stars usually takes planning ahead; the biggest move each turn often isn't enough. Tap Goal during a level to see the targets again. You can replay any level, and your best result is the one that's kept.

Swap trades tiles for new ones and uses up one of your moves. End finishes the level right away with the score you have.

• Stone: blocks a square. No tile goes there, and a line stops at a stone.
• Ice tile: melts when you make a line through it. Melt them all to pass.
• Gold square: put a tile on it. Cover them all to pass.
• Fuse tile: counts down by one every turn, swaps included. Make a line through it to defuse it. If one reaches 0, the level is over.

Each one is explained the first time you meet it.

Boosters give you a little help on a level. You choose them on the level's start card, one of each at most:

• Start with a wild: an extra ★ tile in your rack, which plays as any number.
• Extra move: one more move.
• Free swap: your first swap doesn't use a move.

A booster is only used up when you make your first move, so backing out of a level costs nothing. You start with one of each, and you find more in star chests.

Every 15 stars you earn fills a chest with two or three boosters. Open it from the top of the Puzzles screen. The Puzzles tab shows a red dot while a chest is waiting.

Each level you pass adds one to your streak. From three in a row, every level starts with a free ★ wild tile, on top of any booster you pick.

The streak goes back to zero when a level ends without a pass, and also when you leave a level part-way through.

Passing a level opens the next one. Level 1 is always open, and the Basics at the top are optional: skip them if you already know how to play.

Yes. Without an account it's saved in this browser, so clearing the browser loses it. Create a free account in the same browser and your stars and boosters move into it; after that they're there wherever you sign in on the website.

The bottom bar now has Tumble Tens and Puzzles. Me is the person icon at the top right of your home screen, and the rules are inside it under How to play. In any game they're under More → How to play.

A fast solo game. Number tiles tumble onto a board of seven columns. When a tile lands, the tiles in a straight line with it, across or down, that add up to exactly 10 pop, along with any zeros at either end. Open it from the Tumble tab at the bottom of your home screen, or at crazy10s.com/tumble. You don't need an account. More on the Tumble Tens page.

• Play your rack: tap a tile in your rack, then a column, or drag it there. When your rack is empty, four more come from the bag. At first the columns where it will pop turn green with the points.
• Steer: every few seconds a tile also floats up on its own. It can't go in your rack: slide a finger anywhere on the board to move it, and a square shows where it will land.
• Send: flick up, or tap it or its column, and it lands at once. A tile you leave alone lands in the column it's in.

On a computer, the arrow keys move the rising tile and the up arrow or the space bar sends it.

Tumble Up is a short run: three bags of tiles, then the game is over and your score is what counts. Tumble Down goes on until the pile reaches you: every few seconds a new row pushes the ceiling of tiles one step closer. In both, each level is a bag of tiles for your rack, and later levels send tiles up more often, two and then three at once, and faster.

Every line that pops is 10 points. When the tiles left close the gap and make another 10, that's a chain: double points, then triple. Clearing the whole board adds 50. A ★ wild tile becomes whichever number pops the most.

From level 2 two special tiles come out of the bag too. A bomb (the round black tile with a lit fuse) blows up the 8 tiles around it when its line pops, 5 points each, and a bomb caught in the blast goes off as well. Every line through a gold ×2 tile scores double.

Yes, your best for each way to play. Without an account it's kept in this browser; create a free account and it comes with you.

In a game with them, tap More → Report or block and pick what happened: offensive chat, an offensive name, cheating or something else. The report comes to us with the game's recent chat, and we review reports within 24 hours.

Once you block someone, you won't be matched with them, they can't invite you or chat with you, and their old messages are hidden from you. A game you already started together can still be finished or given up.

To undo it, open Me → Blocked players and tap Unblock.

The app asks to send notifications the first time you play someone, start a Random Match or invite a friend. If you said no, or never got asked:

• iPhone: Settings → Notifications → Crazy10s and turn on Allow Notifications.
• Android: Settings → Apps → Crazy10s → Notifications and turn them on.

You won't get one while you're looking at that game; the move just appears.

iPhones with iOS 15 or later, and Android phones with Android 7.0 or later. Or play in any browser at crazy10s.com, nothing to install. More about the app on the app page.

Email us what you were doing when it happened, your phone or browser, and a screenshot if you can. It helps us fix it quickly.