2048
Slide with the arrow keys, WASD, or a swipe on mobile — two tiles of the same number merge into one. Everyone gets the exact same sequence of new tiles today, so it's your moves that decide the score, not the luck of the draw. One board a day; the streak counts days played, not days won.
Why it is your moves, not your luck
Slide with the arrow keys, WASD or a swipe; two tiles of the same number merge into one. The part worth knowing is that the sequence of new tiles is fixed for the day and identical for everyone playing it. Ordinary 2048 hands out random tiles, so two scores are never quite comparable. Here the draw is the same for all of you, and the only variable left is what you did with it.
One board a day. The streak counts days played, not days won.
Signed out: this one needs an account to play. Every round is dealt and settled on the server against a user, so there is no guest version to offer — the overlay dismisses so you can read the page and see what you would be signing up for.