Who it is for

Anyone who wants a short break, and learners who prefer practice that feels like a game.

The problem it solves

Casual games online are often slowed down by downloads, sign-ups and heavy advertising. These games load in the browser and start immediately.

What you can do today

  • Puzzle games. Sudoku, Minesweeper, Nonogram, 2048, Sliding Puzzle, Maze, Word Guess, Laser Maze, Gear Machine, Build the Bridge and more.
  • Learning games. Math Drill, Flashcards, Geography Quiz, Typing Speed Test, Knowledge Peak and Realms of Knowledge.
  • Real-time two-player. Connect Four, Tic-Tac-Toe, Word Race and Chess can be played online against another person, with quick matching and rematches; Chess can also be played against the computer.
  • Daily challenge and leaderboards. A daily puzzle and per-game leaderboards for players who sign in with a Zerethon account.

How it works

  • Games run in the browser; scores are only sent to the server when you choose to submit them to a leaderboard.
  • In two-player matches, each move appears for both players instantly.

Current limitations

Being clear about what a product doesn't do yet is part of describing it honestly.

  • Leaderboards and online matches need a Zerethon account; single-player games do not.
  • Some games are designed for keyboard or mouse and are less comfortable on small touch screens.

Where to use it

game.zerethon.com — free; no account needed for single-player games.