One word. Six strokes of the pencil.
Hangman has been scribbled on the backs of school notebooks since the Victorian era — the earliest printed mention of the letters-and-gallows game dates to the 1890s. It survives because it needs nothing: a pencil, a scrap of paper, and one person grinning because they've picked a word with a "q" in it. Picking the word is half the game — which is exactly why the two-player modes are the heart of this version.
Play solo against curated topic lists (no obscure dictionary words, and an easy list young kids can actually win), pass one phone around the table with a handover screen that keeps the secret safe, or start a duel: you type the word on your device, they guess on theirs, and you get to watch every letter land. Free, no ads, no account — and everything but the duel works offline.