Collect History.
Put your knowledge to the test by placing events, objects and figures across eras and continents to grow your card collection.
Explore history by playing.
From the most accessible to the most demanding.
Put the cards in order and sort them into the right region. Accessible, no pressure.
Drop the date as precisely as you can on the timeline and pin the spot on the globe. Demanding, precise.
Every card has a story to tell.
A correct answer adds the card to your collection. Get it wrong and the answer screen shows you where and when the event happened — then dive into its detailed entry.
- Review the cards you missed and their detailed entry
- See where and when each event truly happened
A cabinet of curiosities in your pocket.
A few moments of play — the globe, the timeline, the collection.
Choose how your collection is displayed.
Ten exhibition themes to stage your cards — marble, waxed wood, velvet, parchment…
3 free themes: Classic, Marble gallery, Wood & brass.
7 themes with HistoryDex Premium: Velvet & glass, Specimen plate, Gilded parchment, Lapidary, Museum at night, Grand display case, Coin cabinet.
Your collection, in numbers.
A shareable collector card — dominant era, favorite region, rarest card, longest streak — plus your progress era by era. With Premium, open the statistician's full workshop.
- Your shareable collector card, free
- Completion rings and era-by-era progress
- Living rarity: every card shows the % of collectors who own it
- With Premium: world map, era timeline, activity calendar, precision & trends
Play without limits.
Unlimited riddles, zero ads, forever. One purchase, no subscription.
- Unlimited puzzles, zero ads
- 7 premium themes in the Exhibition Room
- Advanced collector statistics
One-time purchases, no subscription. The game stays fully playable for free; your purchases restore on your other devices.
A new challenge every day.
Every day, the same cards as every other player, in Explorer or Historian mode depending on the day. One single try to set the best score you can.
Hand-picked pieces, one theme, one room.
A new exhibition regularly opens its doors: a selection of cards gathered around a single thread — builders, explorers… Play its riddles to reveal the mystery grid and complete the room before it closes.
- A mystery grid revealed as you play
- A curator's title to wear, free for every visitor
- Its visual theme yours forever if you complete the room before it closes
Every Monday, everyone starts from zero.
Every correct answer earns points on the weekly leaderboard, in Explorer and Historian alike. Aim for the podium: the top 3 win the title of the week, the top 10 refill their riddles twice as fast for seven days.
- Two leaderboards: Explorer and Historian
- All-time: your best week ever — a record to beat
- Medals and titles kept for life on your player card
Challenge your friends.
Add friends with their 8-character friend code or by scanning their QR code, then launch a challenge: the same cards for everyone, each at their own pace.
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Add your friends
Share your member card: an 8-character code and a QR code to scan. Your profile photo? A card you've captured.
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Launch a challenge
Tap “Challenge” and pick 1 to 5 riddles. Everyone plays the same cards and has 24 hours to play.
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Results and rematch
Results are revealed as each player finishes. Lost by a hair? Ask for a rematch.
Playing with friends needs a saved account: just an email address and a code.
Frequently asked questions
Found a bug or have an idea?
HistoryDex is evolving fast. Tell us about any issue or suggestion — we read every message.
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