A games room built entirely on keyless public APIs: a trivia reactor, the full Pokédex type-effectiveness matrix and evolution trees, an oracle that guesses your age and origin from your name, a deterministic avatar forge, the xkcd archive, a cocktail lab and an endless wander through Wikipedia.
A Pokémon card-battle duel against the computer — pick a stat, the higher number wins both cards, play until one trainer holds the whole deck.
A real word-search generator and player: pick a theme and a hidden word list is packed into a letter grid along all eight compass directions — forwards, backwards and diagonal — with the gaps sprinkled in decoy letters, then you click-drag across straight runs to snap-select and cross off every word against a ticking best-time clock.
Climb from one word to another a single letter at a time — each rung a real word, every puzzle solvable, with the shortest ladder waiting to be found.
A keyboard sprint against a ghost pacer — type a curated literary passage as the words light up correct or wrong, and try to out-run a metronome cruising at your chosen words-per-minute.
A full Sudoku studio: a backtracking generator fills a complete grid, then carves cells away while a uniqueness-checking solver guarantees exactly one answer — play with pencil marks, conflict flagging, number highlighting, a logical hint, an instant solve, undo and a timer, across four difficulties seeded so any puzzle replays.
The classic n-puzzle, rebuilt: slide numbered tiles — or a slice of a procedurally-generated flow-field painting that is different every game — into the empty cell to restore order, with a shuffle that is provably always solvable, whole-row shoves, a smart hint, and a confetti finish.
The classic memory duel: four glowing pads sing a growing melody of light and tone, and you must echo it back note-for-note — each round adds a step, with strict, speed, and 6-or-9-pad modes to push your recall past breaking.
A reflex arena that clocks the exact millisecond your finger answers the green flash — best-of-five averaged, ranked against the human bell curve, with a Go/No-Go trap and a choose-a-side twist.
A breakneck mental-arithmetic arena: clean-integer sums, differences, products and quotients that ramp from single digits to two-step chains as you streak — score by speed, accuracy and an escalating combo, with a Sprint clock, a Marathon survival run and per-operation drills.
The classic toggle puzzle, with its secret revealed: pressing a cell flips it and its four neighbors, and your job is to darken the whole grid — but every board is really a linear system over GF(2), so a one-click SOLVE computes the minimal press pattern by Gaussian elimination, and a light-chasing demo shows why some sizes leave boards you can never clear.
The addictive guessing game, played with the whole planet — two nations face off and you call whether the challenger ranks higher or lower by population or land, chasing one endless streak.
A geography game: two world cities are pinned on the map — guess the great-circle distance between them, then watch the haversine arc sweep across and score by how close you came.
A concentration game stitched from the world’s flags — flip the cards two at a time, hold every matching pair in your head, and clear the board in as few moves as you can.
A fast-fire geography gauntlet drawn live from the world’s 250 nations — name capitals, read flags blind, weigh populations and trace borders, ten questions to a round.
A perception arena that probes your eye for color — spot the odd swatch in a grid, mix RGB to chase a target, and recall a flashed hue from a lineup, all scored by true CIELAB ΔE color distance as the differences shrink toward your just-noticeable limit.
A timed memory duel against the atlas — pair each flag with its capital before the clock runs down, with rounds that pile on more nations and harder regions the longer your streak survives.
A frantic letter-twisting word hunt — scramble a rack of seven tiles and race the clock to unearth every hidden word before time runs out.
A hypertext stroll through Wikipedia — hop article to article and watch your strange path draw itself as a growing trail.
The complete Pokémon type-effectiveness chart, live from PokeAPI, as an 18×18 matrix with a dual-type weakness calculator.
A fast, themed trivia quiz wired to the Open Trivia DB — pick a category and difficulty, then race a per-question countdown as correct answers chain a streak and stack your score.
Type any text and forge one identity across a dozen avatar styles at once — deterministic, shareable, endlessly re-rollable.
Type a first name and three public APIs guess your most-likely age, gender and nationality — with confidence.
A warm, cinematic browser of every Studio Ghibli film — posters, synopses and Rotten-Tomatoes scores.
Name the country from its flag — pick fast, chain a streak, filter by region to crank the difficulty.
Walk any Pokémon's whole evolution family as a branching tree — sprites and the exact condition for every evolution.
A reader for the xkcd archive — hover to reveal the famous hidden title-text joke.
Shake for a random cocktail or search by name, and get a clean recipe card — photo, glass, measures and the build.