The Tarbet Relay Computer was an electromechanical general-purpose computer built in the late 1940s for use in a university engineering department. It used about 2,400 telephone-type relays and read its programs from punched paper tape, performing a floating-point multiplication in roughly two seconds. The machine was dismantled in 1957, and only its control panel survives in a museum collection.
Tip: press R for real or F for fake.
Every card reads like the opening of a Wikipedia article. Some are real, some were invented to fool you. Decide, then turn the card: real articles reveal their photo and rarity, fakes reveal the picture of a place, creature or object that never existed.
Free, no account needed. Ten cards per round.
How it works
Real articles, convincing fakes.
The real cards are 500 delightfully odd English Wikipedia articles, from obscure animals to tiny railways, each with a freely licensed image credited on the reveal. The 500 fakes were written with AI in the same encyclopedic style, and every title was checked to make sure no Wikipedia article by that name exists. Fakes are always labelled as invented once you answer, with a note on what was made up and an AI-generated illustration, clearly marked as such. No picture is shown before you answer, so images are never a clue. Each card is real or fake at random, so a round can hold any mix.
Tips
What gives a fake away?
Real Wikipedia is often stranger than anything invented: unlikely place names, oddly specific records and objects nobody would think to make up. Invented articles tend to be tidy and plausible. Precise numbers, dates and awkward phrasing are no guarantee either way, which is what makes it hard.
From guessing to collecting
Every real article is a card.
All 7,235,024 articles in English Wikipedia are collectible in WikiCollector, with rarity set by how many people read them in August 2026. Try the higher or lower game, draw a random article, or start a collection of your own.
FAQ
Questions, answered.
How do I play Wikipedia True or Fake?
Read the title, short description and summary, then choose Real article or Fake. The card turns over to show the answer. A round has ten cards and your score is shown at the end.
Are the real articles really on Wikipedia?
Yes. Every real card is an existing English Wikipedia article, linked to the exact revision it was taken from, with its freely licensed image credited.
How were the fake articles made?
They were written with AI in Wikipedia's encyclopedic style, and every title was checked to confirm that no Wikipedia article with that name exists. Each fake is labelled as invented after you answer, with a note on what was made up.
Are the pictures of fake articles real?
No. Fakes are illustrated with AI-generated images of subjects that never existed, and they are marked as AI-generated. No picture is shown before you answer, so images are never a clue.
Is every round half real and half fake?
No. Each card is real or fake at random, so a round can hold any mix. Counting answers will not help you.