Updates

What's changed in Cosmodle, newest first.

September 24, 2026

• Added a How to play page with strategy tips, and a guide to the fourteen kinds of object in the game.

September 13, 2026

• Added a dark theme that follows your system setting, with a night sky behind the board.

September 8–10, 2026

• Reworked the board for mobile: guesses now feed a running knowledge panel instead of a growing table, and remaining guesses show as a progress bar.
• Gave 51 more objects their real photograph, drawn from Wikimedia Commons.

September 5, 2026

• Started carrying advertising, to help cover hosting costs and keep the game free with no account and no paywall.

August 27, 2026

• Published fact pages for moons, black holes, quasars, galaxies, nebulae, star clusters and transient events, once their figures were checked against a catalogue.

August 24, 2026

• Published fact pages for constellations, along with this site's About and Privacy pages.

August 22, 2026

• Added star clusters and transient events as categories you can be asked to guess.
• Changed the daily schedule so the same category of object never comes up two days running.

August 18, 2026

• Cosmodle launched, with the daily puzzle, practice mode and an archive of past days.

Play today's Cosmodle