Puzzle games reward patience over reflexes: spot the pattern, plan the move, rule out the unsafe square before you commit to it. Every game below runs straight in the browser — no app store, no account, no ads to sit through before you start.
Word Vault — the daily word puzzle
Word Vault gives everyone the same 5-letter word each day and six guesses to find it, with color-coded feedback after every attempt. It resets at midnight, so there's exactly one puzzle a day to compare notes on.
Sudoku — a fresh grid every time, guaranteed solvable
Sudoku is the one most people mean when they say “puzzle game”: fill the 9×9 grid so every row, column and 3×3 box holds 1 to 9 exactly once. Nothing here is a fixed puzzle pulled from a book — each board is generated when you press play, then dug out one clue at a time with a solver checking after every removal that exactly one solution still survives. That check matters more than it sounds: a grid with two valid answers will mark a perfectly sound deduction wrong. Easy, Medium and Hard deal 44, 34 and 27 clues, there are pencil marks for the candidates you are not ready to commit to, and three hints per board if a grid stops giving.
Minesweeper — the first click is always safe
Minesweeper shipped with Windows for two decades and taught a generation to right-click. Uncover a square and it tells you how many of its eight neighbours are mines; read enough of those numbers against each other and you can prove where every mine sits without ever guessing. The opening tap is guaranteed safe here — the mines are laid out after it lands, and never on the square you picked or the eight around it, so every game starts with a real region to read instead of a coin flip. Long-press or flip on FLAG mode to mark a mine, and once a number has all its mines flagged, tap the number itself to clear the rest of its neighbours in one go. Three sizes run from a gentle 9×9 up to a 14×14 with 38 mines. Flagging earns nothing: score comes only from ground you actually uncover, and it is banked every tenth of the way in, so a board you lose three-quarters through still keeps what you had earned.
Solitaire — the one everyone already knows
Solitaire is Klondike, played exactly the way you remember it: build the four foundations up from Ace to King, stack the table down in alternating colours, and only a King may move into an empty column. Choose Draw 1 for a relaxed deal or Draw 3 for the classic version that genuinely withholds cards. Unlimited undo means a bad run is never a dead end, and auto-finish sweeps the board once it opens up. Tap a card, tap where it goes — no dragging, which is where most browser solitaire falls apart on a phone.
Mahjong Solitaire — three boards, every deal solvable
Mahjong Solitaire is the tile-matching board, not the four-player gambling game it borrows its tiles from. Clear pairs of identical free tiles until nothing is left: a tile is free when nothing rests on top of it and one of its long sides is open, which is the whole rule and the whole difficulty. Pick a gentle 72-tile Courtyard, the authentic 144-tile Turtle with its head, tail and crown tile, or a 120-tile Pagoda stacked four deep.
Every deal is generated backwards from a finished board — pairs are lifted off a full layout two at a time, and that sequence played in reverse becomes the deal — so a solution provably exists before you see it. That still leaves real difficulty, because four identical tiles can be split the wrong way across the board, which is what the three shuffles are for. The flowers and seasons all match within their own group, so those eight tiles are the ones worth saving.
Spider Solitaire — two decks, and only one rule that matters
Spider Solitaire deals two full decks into ten columns and asks you to send eight complete King-to-Ace runs away. You can stack a card on any card one rank higher regardless of suit, which makes the opening look far more generous than it is — because a group of cards only travels together when it is a run of a single suit. Park a nine of spades on a ten of hearts and it is stuck there until you dig it out one card at a time. That single asymmetry is the whole game.
Pick one suit to learn the shape of it, two for a proper game, or four for the version that beats most people, with the score multiplier rising to match. The stock deals a card onto every column at once and you get five of them, but never while a column sits empty — so an empty column is simultaneously the most useful thing you can own and the thing blocking your next deal. Undo goes back as far as you like, and it costs nothing: the score comes only from face-down cards you turn over and suits you complete, so experimenting is free and shuffling a card back and forth pays exactly nothing.
2048 — the one you already know how to play
2048 needs no explanation and that is the point: swipe, the whole board slides, and two tiles showing the same number fuse into one worth double. The skill is entirely in what you do with the biggest tile. Pick a corner, use only the two directions that keep it pinned there, and keep the edge beside it sorted high to low so it can zip-merge along in one swipe when the right number finally turns up. Almost every run that collapses does so on a panic swipe in the fourth direction, which lifts the big tile out of its corner and drops a fresh one underneath. Score banks at each new biggest tile, so a board you abandon still counts for what it made.
Marble Maze — puzzle speed at arcade pace
Marble Maze is the one on this list that wants your hands as much as your head: tilt a 3D maze to roll a marble to the exit without dropping it through a hole. It's faster and more reflex-driven than the rest, closer to a puzzle/arcade hybrid.
Sweet Swap and Bubble Burst — the two match-and-clear games
Sweet Swap is a match-3 score attack with 30 moves to spend: swap neighbouring candies to line up three or more, and chain the cascades, since each step of a chain scores higher than the last. Line up four or five and you keep a striped blast, a 3x3 bomb or a rainbow drop that clears an entire colour. Every candy has its own shape as well as its own colour, so it stays readable if you don't distinguish reds and greens easily.
Bubble Burst is the aiming counterpart — fire bubbles up into a hex-packed cluster to pop groups of three or more. The detail that decides runs: knocking out a bubble that others were hanging from drops that whole group, and dropped bubbles score more than popped ones. The ceiling pushes a fresh row down every few shots, so clearing the anchors matters more than clearing the most bubbles.
Circuit Link — routing under a full-coverage rule
Circuit Link looks like simple pair-matching until you hit its real rule: linking every pair isn't enough, because the board only powers up once every single square is covered. That one condition is what makes it a puzzle rather than a tracing exercise — the short, obvious route between two terminals is usually the wrong one, because it strands squares nothing can reach. All ten boards were machine-verified to have exactly one solution, so there's always a single right answer to find.
Lucky 6 — the shortest puzzle here
Lucky 6 is a one-minute commitment: six random numbers are drawn one at a time, and each must be locked into one of six multiplier slots before you're allowed to see the next. You can't undo, and you never know what's coming — so it's a pure test of when to gamble a high slot early versus holding it for a number that may never arrive. Ascending runs and matching pairs pay bonuses on top.
See the whole shelf on the Puzzle category page.