The best free browser games where you guess the year a photograph was taken - from the pure photo-year lane to the year-and-place games that dominate it, and how guessNow fits each of them with provenance you can actually check.
The genre's real formula is one historical photograph - or event - and one question: what year? The answer is the same for everyone each day, so a wrong guess is instantly discussable, which is what turns a small puzzle into a habit. The useful split for a player choosing what to open is what the game asks. Some ask the year alone; some add a map and ask place and year together; a few trade photographs for written events. All of them train the same skill - weighing incomplete evidence and committing to a date - but the photographic lane is the one where the evidence is real and checkable.
guessNow shows a real archival photograph revealed piece by piece over a few seconds, and you slide to the exact year before your 300 HP runs out. The Daily Challenge gives everyone the same five shared moments each day. What separates it from the rest of the lane: every image carries its photographer, licence and source on the reveal - no stock, no AI-generated imagery - so the answer is something you can interrogate and learn from, not just accept. Free, no account, about twenty seconds a round.
Chronophoto is the purest year-only game in the field: five undated photographs a day, a slider from 1900 to today, and points for closeness - up to 1,000 per photo and 5,000 for a perfect round. No map, no accounts, and everyone who enters the same passcode gets the same five photos, so it shares cleanly.
Decade deals five historic photographs a day and asks for the year each was taken, with closer guesses scoring more out of a maximum 5,000. A straight year-only sibling of the photo lane, listed alongside the better-known names in the daily-game directories.
Which Year runs the same five-photos-a-day loop across 1850 to 2025 images, scored against a year-only timeline. Like Chronophoto it skips the map entirely and asks the year alone - the quickest, most shareable loop in the family.
TimeGuessr asks two questions of each of five historical photographs: roughly where, and in what year. It is free in the browser, serves everyone the same five photos daily, and now ships iOS and Android apps, making it the biggest audience in the genre - and a year-and-place game rather than a pure date guess.
WhenTaken keeps the session to a single photograph at a time: drop a pin for where you think it was taken and slide to the year. Close to TimeGuessr in spirit, but focused on one image at a time.
EraPin shows a real historical photograph and asks where it happened and when - drop a pin on the map, scroll to the year, five rounds with up to 25,000 points, a new event every day and an archive of previous days. It also ships a dedicated classroom mode with no student logins.
Anthropeum swaps photographs for objects: each day you get ten artefacts from the Met's open-access collection and guess where and when each was made. The same evidence-reading loop, applied to museum objects instead of scenes.
Not every game in the genre uses photographs. HistoryGuesser builds its rounds from AI-generated 360-degree reconstructions of documented moments: you turn all the way round, pin the place and set the year. EraGuessr does the same with a map-and-year slider over AI scenes, and publishes the comparison guides the genre is measured by - its own disclosed stats say its players' median date-guess misses by roughly 250 years. Both are honest that the imagery is reconstructed, not archival - the cleanest illustration of the split in the genre.
WenWare moves further still: painterly AI-generated images that evoke an era, and you guess the period. Free and browser-based, it is the artistic end of the AI-image lane rather than a dating exercise on real evidence.
The year-question extends past photos. Yeardle gives you three events that all happened in the same year and eight guesses to find the shared year. Histodle runs the Wordle six-guess structure against the year of a historical event. NYT Flashback does year-guessing inside the New York Times Games hub. All three train recall rather than reading a frame.
Headlines shows five real newspaper front pages and asks you to guess the year each was published - a new puzzle daily, the same headlines for every player, and shareable results. A printed-paper cousin of the photo lane with its own typography-and-format clues.
The deciding difference for a player is what the game asks and where its pictures come from. Yeardle, Histodle and Flashback want a year from written events; TimeGuessr, WhenTaken and EraPin add a map; Chronophoto, Decade, Which Year and guessNow ask the year alone. On imagery the split is sharper: the reconstruction lane (HistoryGuesser, EraGuessr, WenWare) is AI-generated, while the photographic games show real frames - and guessNow is the only one that shows photographer, licence and source on every reveal, so a wrong guess teaches you something you can look up. To practise the same reading-the-frame skill between rounds, our guide to dating an old photograph walks through the costume, technology and signage clues the year-guessers train, and for the real-photo archive behind it, browse the full archive of every round guessNow keeps.