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AltF Lexicon has 4 word games — word scramble, guess the definition, syllable split, odd one out — and 102 rounds between them. Every puzzle is drawn from the same 147,478-entry dictionary by a deterministic hash rather than a random draw, so every player gets the same rounds on every visit, and every answer links to the full entry it came from. No account, no timer, no cost.
A word game usually stands on a list somebody typed out: a thousand words picked for being gettable, reused until you have met them all. These four stand on the dictionary instead. Every round is selected at build time from the live corpus of 147,478 entries — definitions and semantic classification from Princeton University’s WordNet, syllables and stress from the CMU Pronouncing Dictionary — and every round says which rule selected it.
The selection is a hash, not a random draw. Each candidate word’s slug is run through the same 32-bit hash the rest of this dictionary uses, and the lowest 102 across the four games become the rounds. Hashing rather than sampling is what makes the games reproducible: the page built at deploy time and the page regenerated by a daily revalidation contain the same puzzles in the same order, so a round you tell someone about is the round they will get. It also spreads the draw across the whole corpus — slicing the top of a list ordered by commonness would return thirty words that all start with A.
Because the puzzles come from real entries, the answers are not dead ends. Solve a scramble and its full entry is one click away, with every sense, the pronunciation and the synonyms; lose an odd-one-out round and the reveal names the subject file WordNet filed each of the four words under, so a grouping you disagree with is one you can go and check. That is the whole design: a game you can argue with, and a dictionary waiting behind the argument.
None of the four fetches anything once it has loaded. All 102 rounds ship inside the HTML, which is why there is no pause between rounds, no timer to race, and nothing sent anywhere about how you played.
The words, definitions and semantic fields in this game come from Princeton University’s WordNet. Syllable splits, stress and IPA come from the CMU Pronouncing Dictionary. Commonness bands are measured against a corpus of everyday English. Full sources and licences.