Open a pack of thinkers. Collect philosophers by rarity.
Each pack pulls four to five notable thinkers from a themed slice of Wikipedia — one shuffled category per pack. Flip the cards, collect the ones you love, and pick a pack type to chase Legendary cards.
4–5 cards / pack5 pack types250 starting coins
The pack shelf
Five sealed tiers — the free ones refill on a clock.
A free philosopher card game built on Wikipedia
Pack Thinkers is a free browser card game about the people behind the big ideas. Every pack deals four or five philosophers and thinkers, each card a real Wikipedia biography with a portrait and a short extract. There is nothing to download and no account to create: you start as a guest with coins in the bank, and the free packs refill on a clock.
Rarity is a fact about the person. It is the number of language editions of Wikipedia that carry their article: 100 or more makes a Legendary card, 50 an Epic, 25 a Rare. Plato and Confucius are Legendary; a scholar read in a dozen languages is a Common.
The thinkers you collect light up on the influence map, a graph of who shaped whom across twenty-five centuries, and fill out schools such as the Stoics or the Frankfurt School. The daily puzzle asks you to guess one thinker from four clues, and the hourly quiz deals a quick run of questions.
Questions
- Is Pack Thinkers free?
- Yes. The hourly and daily packs cost nothing, and the bigger packs are bought with coins you earn by playing: selling duplicates, the quiz and the daily puzzle. Nothing is sold for real money.
- Where do the cards come from?
- From English Wikipedia, live. Each pack picks one category of philosophers and deals cards from a slice of its biographies, so almost every pack shows someone new. Only thinkers who also have a Russian Wikipedia article become cards.
- How is a card's rarity decided?
- By reach: how many language editions of Wikipedia have an article on the person. The thresholds are 100 for Legendary, 50 for Epic and 25 for Rare, and the server computes them.
- Do I need an account?
- No. Signing in with Google or Telegram only keeps your collection safe and carries it across devices.
Explore the thinkers
Your collection
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The river of influence
Each diamond is a thinker, sized by how many people in this map drew on them directly. Lines run from a thinker to the people they shaped — the further right a diamond sits, the later they were born. Vertical position only spreads crowded clusters apart so names stay readable; it never signals importance.
Drag to pan · scroll or pinch to zoom · click a star for details
A curated slice of the Western canon plus its roots — drawn from Wikipedia articles and the Wikidata “influenced by” property. Lineage in the history of ideas is debated; treat every line as one honest account, not the last word. A thinker's reach — how many languages carry their article — is the same number that sets a card's rarity on the shelf; it is shown in the tooltip and the details card, not encoded in the graph itself.
Hourly quiz
Bridge
Thinker of the day
Guess the philosopher, one puzzle a day
Thinker of the day is a daily philosophy guessing game in the spirit of Wordle. One thinker from the history of ideas is picked for everyone, and a new one arrives each day at midnight UTC. Type any name from the map and the board answers with four clues.
- Era: whether your guess lived in the same era, the neighbouring one, or further away.
- Born: how close the two birth years are, and whether the answer was born earlier or later.
- Reach: how many language editions of Wikipedia carry each thinker's article, more or fewer.
- Link: how many steps of teacher and student separate your guess from the answer on the influence map.
After a few misses a clue about the thinker's work opens, and later their lifespan. A solve pays coins for the card game, more for fewer guesses, and every day in a row builds a streak. New to the names? Browse the thinker index or the most influential philosophers. And if you have ever wondered whose side you would take, the which philosopher are you quiz matches you with one of sixteen thinkers in twelve questions.
Letter by letter
Guess the philosopher letter by letter
Letter by letter is a daily word game about philosophers. Each day at midnight UTC the surname of one thinker, anyone from Socrates to Simone Weil, goes behind a row of tiles, and everyone plays the same one.
Pick a letter and every tile that holds it opens. A letter the name does not have costs one of your six lives. Once you think you know who it is, type the surname: a wrong one costs two lives, so it pays to be fairly sure. The era and the years are shown from the start, and after three misses a one-line bio opens as well. A solve pays coins for the card game, more for fewer misses, and the answer opens on the thinker's card. Not sure of a name? The thinker index lists them all.
Groups
Sort the philosophers into four groups
Groups is a daily philosophy puzzle. Each day at midnight UTC sixteen thinkers go on the board, the same for everyone, along with four named groups, one per column. A group can be a school, such as the Stoics or the Frankfurt School, everyone born in one century, the thinkers one philosopher influenced, or the thinkers who influenced one philosopher.
Drag each thinker into a column, four per column, or tap a name and then a column. When everyone is placed, check the layout. A column with all four right locks, and the others show how many of their four are right. Every thinker fits exactly one group, but some look as if they fit two. Four wrong checks end the game. A solve pays coins for the card game, more for fewer mistakes. The lines between teachers and students come from the influence map, and the thinker index has a page for every name.