Eureka is a free daily browser game about the people behind invention and discovery. Every day there is one answer — a historical inventor or scientist — and you have eight guesses to name them.
Each guess is compared against the answer on six things (field, birth year, nationality, Nobel status, inventor vs. scientist, and gender) and unlocks one more line about what the person is known for. The pool runs to a few hundred figures, from antiquity to the present day.
Eureka is a solo project — designed, built, and maintained by one person. There is no company behind it, no investors, and no ads. It is free to play and needs no account; the only thing stored about you is an anonymous ID in your own browser so the statistics page can show your history. The privacy page spells that out in full.
Corrections, bug reports, and suggestions for people to add are all welcome — see the contact page.