What is sentence mining?

Sentence mining is making your own study cards from real content instead of a textbook — you pull the words and sentences you didn't know out of a game, show, or book, and review them with spaced repetition. Because each card comes from something you chose to engage with, the vocabulary is relevant and already in context.

Can you automate sentence mining from games?

The capture part, yes. A screen-reading tool can recognize on-screen text, show the meaning, and save the word with its sentence and screenshot while you play — which removes the manual screenshot, OCR, dictionary, and paste loop. Choosing what to keep and reviewing it is still yours to do.

Do you need Anki for sentence mining?

No. Anki is popular for the review step, but any spaced-repetition system works, including one built into the tool you mine with. If you already use Anki, look for a tool that can export to it so your game vocabulary joins the deck you already review.

Sentence mining from games, without the busywork

Sentence mining is one of the better ways to learn a language from things you actually want to read. You meet a word in real content, you keep it with the sentence it came in, and you review it until it sticks. The idea is sound. The problem is the busywork around it.

Done by hand, mining a game looks like this: hit a line you don’t know, screenshot it, run it through an OCR tool, copy the word into a dictionary, copy the meaning into a deck, then back to the game — until the next line you don’t know. Somewhere in there you stop being a player and become a data-entry clerk, and the game stops being a game.

This post is about what sentence mining from games is, why the manual version is especially rough for games, and what changes when the capture happens while you play.

What sentence mining is

If you’ve landed here from a search and the term is new: sentence mining is harvesting your own study material from native content instead of a textbook. You read or play something real, pull out the words and sentences you didn’t know, and feed them into spaced-repetition review — often Anki. Because every card comes from something you chose to engage with, the vocabulary is relevant and the context is already attached.

It works. The catch is that the harvesting is manual, and the more friction it has, the less of it you actually do.

Why games make the manual loop worse

Mining a book or a video is slow, but at least it holds still. A game doesn’t. Text shows up in menus, item tooltips, quest logs, and dialogue that moves — and your hands are on the controls. To mine a line by hand you have to pause, capture, leave the game for a dictionary, type, and come back. Do that every few sentences and two things happen: extracting cards quietly becomes the goal, and you’re not really playing anymore. The fun you came for leaks out one screenshot at a time.

Plenty of people have a setup that works — a text hook, an OCR tool, a dictionary, an Anki add-on, chained together. It’s powerful, and it’s also a lot to assemble and keep running. It’s easy to give up before the first card.

What changes when the capture is automatic

The fix isn’t a better dictionary. It’s moving the capture off your hands and into the background, so reading and saving happen in the flow of play instead of interrupting it.

That’s the loop a tool like Playto is built around. It reads the on-screen text in place and shows the meaning as an overlay on top of the game, so you don’t Alt-Tab out. When a word matters, you save it with the screenshot and the original sentence already attached — the context you’d otherwise be assembling by hand. Cursor-follow lets you point at an item or skill tooltip without stopping. Later, the words you kept feed review with spaced repetition, so meeting a word in the game and remembering it afterward are one pipeline instead of five tools.

The point isn’t that there’s no work left. It’s that the work that remains is the learning — reading and reviewing — not the plumbing.

You still do the part that matters

Worth being honest about the limits. The meaning shown for a single word is reliable; a long, context-poor line is a hint, not a verdict — short disconnected sentences are genuinely hard for any AI, for reasons worth understanding. So you read the original alongside it and check anything that really matters. And keep less than you think you should: the failure mode of mining isn’t too few cards, it’s two hundred half-interesting ones you never review. Save the line that blocked you, not every line.

If you already live in Anki

None of this means leaving the deck you use. Anything you save while playing can export to Anki — the word, the definition, and the in-game sentence you first met it in — and drop into your existing review. The automatic part is the capture; where you review is up to you.

Getting started

Pick a text-heavy game you actually want to play. Visual novels and turn-based RPGs are the easiest to mine, for the same reasons they’re good for learning — you control the pace and there’s a lot to read. There’s a free demo you can try on your own games first. The best mining setup is the one you’ll still be using after the novelty wears off, and that’s usually the one you barely notice.