Daily Challenge (dailychallenge.click)
One retro arcade game a day, the same map and seed for everyone, and a single coin to play it.
Every day: One arcade game a day, chosen from 25 retro arcade games, with the same map and seed for everyone; one coin per person, and the day's Top 10 freezes at 23:59 Mexico City time. New puzzle: Midnight Mexico City time.

Daily Challenge is a browser arcade with one challenge a day. At midnight Mexico City time one of its Atari 2600-style games opens, with the same map and seed for every player, and you get one try. Scores are checked on the server and the Top 10 is frozen at the end of the day.
About Daily Challenge (dailychallenge.click)
Daily Challenge, made in Mexico by Ayotl, is an arcade built around a single daily try. Each day at 00:00 Mexico City time one game comes up from a rotation of eighteen: Snake, Breakout, Frogger, Galaga, Pac-Man, Nibbler, Tetris, Jewels, Asteroids, Pang, Basket, Battle City, Kaboom, Missile Command, Invaders, Dig Dug, Centipede and Space Impact. All are original versions written from scratch at 160x192 pixels with a 128-colour Atari 2600 palette and public-domain music turned into chiptune.
The map and seed are the same for everyone, so the same snake, the same ghosts and the same falling pieces greet every player that day, and the board compares skill rather than luck. You get one coin per day. Scores are worked out on the server by replaying your run key by key, ties go to whoever got there first, and at 23:59 the Top 10 is frozen for good. The day's champion gets a crown, an extra coin for the next day and a short message on the home screen.
The site also has a live party mode for two to five players and slow turn-based board games such as Gomoku and Reversi, and the itch.io page is a practice mode with all the games and unlimited tries that does not count for the board. It plays on phones with on-screen arrows or swipes and on computers with the arrow keys or WASD, in Spanish and English, free with no purchases.
How to play Daily Challenge (dailychallenge.click)
- Open dailychallenge.click and see which game is on today.
- Read the game's rules on the games page if it is new to you.
- Press Play and use your one coin; on a phone use the on-screen arrows or swipe, on a computer the arrows or WASD and space.
- Play until the game ends; that score is your entry for the day.
- Check the day's board, which closes at 23:59 Mexico City time.
Screenshots

Tips
- Practise the day's game on the itch.io practice mode before spending your coin.
- Since the seed is fixed, the same patterns come up for everyone; in Tetris the piece order is the same for all.
- In Pac-Man the ghosts use no randomness, so routes can be learned.
Questions
Is the challenge the same for everyone?
Yes. The map and seed are the same for every player each day.
How many tries do I get?
One coin per person per day. The previous day's champion gets one extra.
When does it reset?
A new challenge opens at 00:00 Mexico City time and the board closes at 23:59.
Is it free?
Yes, with no purchases. Leaving a champion's message needs a Google sign-in.
Games like Daily Challenge (dailychallenge.click)

DayBrix
A daily falling-block arcade run with one attempt

DropStack (Zalize)
A daily arcade game with the same drops for everyone and a leaderboard

BusyBazaar (Zalize)
A short daily arcade rush, the same for every player

Curved Space
One shot a day at an arcade shooter's Daily Run leaderboard

Anybody Problem
Clear a run of orbiting, gravity-bound bodies as fast as you can, with a new set every day.

Assault Android Cactus+
A twin-stick shooter with one shared ten-layer Daily Drive each day and a single shot at the leaderboard.

Jumple Up
Jump up a climb built from the day's seed and get ten tries at the daily leaderboard.

Race The Sun
Steer a solar craft toward the setting sun through a world that is rebuilt every day.