Ninefall vs Adversary

FREE TO START The first two worlds and the Daily Flip are free. One purchase unlocks everything else, forever: six more worlds, every secret, the full One-Shot ladder and the Sandbox. No ads, no tracking, no account. Every tile holds a number. Play one of yours onto it: the values add, the tile flips, and every lower-numbered neighbor topples after it, domino-chaining across the board. The catch: past 9, numbers roll over. 6 + 6 = 2. The goal: clear it all with a handful of numbers. That one rule hides the depth. Greed has a price, nines are fortresses, zeros are scalpels. And one perfect placement can flip the whole board in a single, glorious GRAND CASCADE. A JOURNEY OF EIGHT WORLDS 96 hand-calibrated levels teach the game by play, never by text. Stones block, seals lock, ice cracks, bombs level everything beside them, traps must never flip, wormholes carry your cascade across the board, and shifter tiles grow with every move you make. Collect a world's gems and its secret level appears. EVERY LEVEL CERTIFIED FAIR Each puzzle ships machine-verified: always solvable, par always exact, never cheap. Unlimited undo and a solver-powered hint are built in. Thinky, never punishing. THE DAILY FLIP One board, the whole world, every day. Keep your streak (one automatic repair a month, because life happens), and share your result without spoilers. FLOURISHES, NOT STARS Every level carries one optional master-goal: clear it in a single placement, never roll over, end on a 9. No grinding, no ratings, just elegance. MADE LIKE A TOY Chunky ceramic tiles that flip with real weight, synthesized marimba cascades that climb as your chain grows, haptics choreographed to every topple, Day and Night themes, Home Screen widgets for your streak, and in the large sizes today's Daily board and your numbers (extra-large on iOS 27). PRIVATE BY DESIGN No ads, no tracking, no account. Playable offline.

One more scroll—or one more flip? Adversary is a quick memory-matching game with a Danger card that you don't want to find. Flip cards, remember what you've seen, and match the pairs. The rules feel familiar, but every flip carries more tension because Danger is hiding somewhere on the board. PLAY YOUR WAY Two game modes, each with five difficulty levels Bigger boards and more challenging layouts Different Danger setups across difficulties Try Extreme mode with instant Game Over when Danger is revealed TWO GAME MODES: Classic: The original Adversary experience. Flip cards, remember their positions, find every pair, and try not to reveal Danger. Shuffle: First, memorize the board. Then watch the cards shuffle before the game begins. Find the pairs from their new positions — and if you reveal Danger, the remaining hidden cards may shuffle again. CHASE YOUR BEST Track your best score for each difficulty Can you beat your best? MADE FOR QUICK ROUNDS Adversary is easy to pick up when you have a few spare minutes—waiting for a bus, standing in a queue, or reaching for your phone out of habit. Instead of opening another feed, play a focused round and see how far you can push your score. START FREE Classic starter is free to play. Unlock all game modes and levels with one lifetime in-app purchase. No subscriptions. Just matching pairs, hidden Danger, and the question behind every flip: Is this the one?