100 JavaScript Online Games: Offers 1-player and 2-player games from many genres: puzzles, word games, board games and card games.
Alienballs: Slightly addictive game, nice interface and world-wide high scoring.
Armin' Web Games: Play for free Battleship, Mahjong, Connect Four, Marble Solitaire, puzzles.
Arun's JS Games - Online Javascript Games: Original Online Javascript Games by Arun Narayanan. Puzzles, Jigsaw, Number Guessing Games, and Tic-Tac-Toe. All games can be played online.
Big Brother Game: Plus free big brother eviction night tickets and backstage passes to aftermath party.
Bradleys Game Room: Java Script games: Battleship, yahtzee, blackjack, hangman, invaders.
Conway's Game of Life: Simulation of general cellular automata and Conway's Game of Life implemented entirely in JavaScript.
Cowthello: JavaScript version of the board game Othello using cows instead of counters with simple computer opponent.
DaveDigitalWorks: Browser games like Battleship, Memory, 3D Tic Tac Toe, Memory, Connect 4 and Same Game.
David Lawrence memory game: A matching JavaScript game.
Def-Logic Videogames: Collection of free JavaScript videogames.
DHTML Lemmings: Play the classic Lemmings game in your browser. Needs a fast computer (>500MHz suggested).
Explorer Solitaire: JavaScript Library for building Solitaire Games with many demos like Klondike, Free Cell, and Canfield. For Internet Explorer only.
Free Java/JavaScript Games: Blackjack, Tetris, Battleship games.
Free Online Javascript Arcade: Free javascript games online for fun entertainment.
Games through Internet: Games for Internet Explorer - Tetris, Arcanoid, Snake and Sea Battle. You can play VS your friend!
Hangman in JavaScript: Customizable questions, answers and hints.
Hop Studios Games: Colorful Tic Tac Toe and Connect 4 in JavaScript for two players.
HotBlocks JavaScript Games: Free Hot Blocks and MetaSpider java script games that can be installed and played on any web page in less than 2 minutes. The applets are a single cut and paste line.
I-Technology Games: Simple JavaScript games: Connect 4, Connect 5, Wired, Hangman, Battleship and a Sliding Tiles puzzle.
Javascript Arcade: Play classic arcade games online or download them for offline gaming. Titles available include Space Invaders, Moon Patrol, Donkey Kong and Asteroids
JavaScript Minesweeper Game: JavaScript clone that looks like the Windows Minesweeper implementation. Includes high scores and a few useful options.
Jennifer Burke's MasterMind: Play a nice JavaScript implementation of the game MasterMind.
JS-Games.de: JavaScript implementations of games including Minesweeper, Mastermind, Memory, Tetris, Pacman, Sokoban and Othello, with highscores and commented source code.
K.Moriyama's JavaScript Games: A collection of games mainly coded for the 4.x generation of web browsers including Hard Block, PacMan, and Tetris.
Last defence: JavaScript shoot-'em-up using DHTML. Requires a fast computer to run smoothly.
Mazesmith: A maze generator written in JavaScript, and is able to be printed or played through a web browser. The maze is fully customizable with many options.
MineSweeper: A JavaScript version of MineSweeper by AMiTo with most of the original game's features, including sounds, and extended table of best times.
Minesweeper King: Play minesweeper with extra features such as puzzle, auto-solving and edit mode.
Mr Mojo Risin: Fun JavaScript games to play, including Breakout, Minesweeper, Tic Tac Toe, Poker, Rock Paper Scissors, and Snake.
NeilPearce.com: Chess and conversions of the old Atari 2600 games Kaboom and (not yet finished but already playable) Combat in JavaScript/DHTML.
Peeptin: A tiny (130 pixels wide) javascript game that users can insert on their web page with a simple cut-and-paste of the code provided. It is a free clone of the classic "15" puzzle, and works with all browsers.
Procrastinator's Games: Battleship, Blackjack, Pong, Tic Tac Toe and more 1 and 2 player games to play in your browser.
The JavaScript Source: Play the classic games Battleship, Mastermind, Blackjack, Connect 4, Breakout, Memory or Tic Tac Toe or any of the dozen other games. Including each game's source code.
World of Turtle: A puzzle game. Collect all the keys and get to the door. Also has an editor for you to create you own levels.