Crossword

Word puzzles have an advantage nothing else does: the moment a word arrives, you know it's right. There's no ambiguity and nothing to second-guess.

Daily Wordler is the guess-the-word format that took over everyone's mornings, and it works exactly as well here. WordMix and Word Stars both build from a set of letters, which is a different discipline - you're searching for what's possible rather than deducing what's correct. Bubble Letters combines spelling with a bubble shooter, and Word Holiday keeps things seasonal. They're the sort of thing you can abandon mid-puzzle without losing anything, which makes them ideal for a distracted afternoon.

There are 5 free games under this tag, all playable in the browser with nothing to install, and they're the sort of thing you can put down mid-puzzle without losing anything.

The thinking end is Brain games, and Wordsearch Games is the closely related tag.