Numbers add. Boards topple.
A chain-reaction number puzzle for iPhone and iPad. Play a tile, the values add, and every lower-numbered neighbour topples after it. Past nine, numbers roll over.
$4.99, once3.3 MB96 levels 9 languagesPlays offline
This is 1‑8 · Descent, the eighth level in the game, exactly as it ships. Three tiles, par two. The obvious move is a trap, and one of these tiles adds nothing at all.
Three laws, no manual
Play a tile from your hand onto one on the board. The values add, and the tile flips face up.
There is no twelve. This is the signature rule, and the reason the greedy move is usually the wrong one.
A flipped tile topples every neighbour holding a lower number, and those topple theirs. Equal numbers block. Nines are fortresses, zeros are scalpels.
Certified fair
Before a puzzle reaches you, a solver searches it exhaustively. It has to be solvable, its par has to be exact, and its optional master goal has to be reachable. The proof is stored next to the level and re-checked on every build.
No board is probably fine. That is why there are no hint packs to sell you: unlimited undo and a solver-powered hint are simply built in.
The real record for the level in the hero, taken from the game's own level data. 103 boards carry one, including all seven secrets. Clear a whole board in a single placement and that is a Grand Cascade, which is what the game is really about.
The journey
Each world introduces a single new piece and then explores it properly. Twelve levels each, and a secret level hidden behind every world after the first: collect a world's gems and it appears.
The grammar of the cascade
The rule
Terrain shapes the flow
Stones
Build your nines in two steps
Sealed tiles
Crack it, then flip it
Ice
Power and surgery
Bombs and traps
Cascades without borders
Portals
The board will not sit still
Shifters
Everything you know, drifting
Everything
New in the free update
World seven adds the shifter. It gains one after every move you make, whether you touch it or not, and nine falls to nothing. A plan that took four moves to set up is not the same plan by the time you get there.
One shifter, three moves later. Worlds seven and eight arrived free, after launch.
The ritual
Today is Daily Flip #251, September 8. The same five-by-five for everyone, everywhere, built on your device from the date alone. There is no server behind it and no account to make.
Keep a streak and put tomorrow's board on your Home Screen with the widget. Miss a day and you get one free repair a month, because life happens.
Game Center leaderboardLowest move count wins
The flex
One-Shot hands you a dense board and a single tile. Bombs, wormholes and rollovers turn the obvious placement into a trap. Find the one that beats the board's certified best, then share the whole cascade as a looping GIF from the win screen.
Every board is a link. Send one to a friend and they can play the exact same puzzle, no install required.
The feel
Chunky ceramic chips that flip with real weight. Marimba notes that climb as the chain grows, haptics choreographed to every topple, and a slow-motion finale when the whole board goes.
Native from top to bottom. No game engine, no cross-platform framework, no third-party code at all. That is how the whole game fits in 3.3 MB and opens instantly.
The whole picture
Privacy
Not anonymised analytics. Not crash reports. Nothing. There is no account, no advertising identifier, and no network request the game makes on its own. Your progress lives on your device, and in your own iCloud if you turn it on.
The App Store privacy label reads Data Not Collected, because there is genuinely nothing to collect. Read the full policy.
The deal
$4.99, once.
No subscription, no in-app purchases, no ads, no season pass. Worlds seven and eight arrived free after launch, and future level packs are included too.
