Casual games are the games that generally defined as easy-to-learn, one-player or easy going multi-player games that can be play for five minutes or five hours (depends and up to you) are attracting more and more gamers and players, especially women and people older than 35 years old. This include brain teasing games such as mahjong, Sudoku and solitaire. Thus, more and more online websites are offering the addicting games for free playing online, mostly with the support of advertisements or required subscription fees or purchase downloadable games. And some game sites even give away prizes and cash for winners.

The major popular online gaming sites that offer free casual computer games are listed below, along with some popular free game titles available for free play.

  1. Electronic Arts Pogo (www.pogo.com) – High Stakes Pool, Poppit, First Class Solitaire, 6th Street Omaha Poker, Dominoes, Mah Jong Quest, Vaults of Atlantis Slots, Word Whomp, Bookworm, Crossword, Scrabble Blast, Tumble Bees, Word Search, Stack ’em, Payday FreeCell, Turbo 21, Lost Temple Poker, Rainy Day Spider Solitaire and many more casino, puzzle, word, card & board, and sports games. Real cash prizes and tokens to be won as powered by WorldWinner.
  2. RealNetworks RealArcade – now GameHouse (gamehouse.com) after acquisition – Super Collapse 3, Diner Dash 2 – Restaurant Rescue, Big Kahuna Reef 2 Chain Reaction, Feeding Frenzy 2, Tropix, Pearl Harbour Zero Hour, Alien Sky, TrickShot, Da Vinci’s Secret, Yahtzee, Zuma, Mystic Inn, Glyph, Monopoly 3, Mystery Case Files – Huntsville, Word Cross, Teddy Factory, Mah-Jomino, Luck Charm Deluxe, Chameleon Gems, Hammer Heads Deluxe, Bliss Island and over 400 puzzle, word and action games. RealArcade needs to be downloaded and installed, with game giveaway after watching brief ads and skill Cash Games powered by SkillJam offering cash and prizes for free.
  3. Big Fish Games – Free trial version games download or free games in Club Atlantis online games such as Team Bingo, Lightning Bingo, Badda Bingo, Suits Me TriPeaks, Nautilus, Suits Me Canfield, Suits Me Yukon, Jewel Quest, Suits Me Yukon, Suits Me Solitaire, Deuces Wild, Thunderbolt 21, Text Twist, Shape Shifter Atlantis and more than 100 other free games. Earn and save tokens to enter into Token Lotteries to win cash prizes.
  4. Yahoo! Games (games.yahoo.com) – Pool, JT’s Blocks, Luxor: Amun Rising, Literati, Chess, Luxor Mahjong, Spades, Hotel Solitaire, Pyramids, Poker Superstars II, Canasta, Magic Match, Bejeweled 2, QBeez 2, Literati, Text Twist, Flip Words, MCF: Prime Suspects, Fish Tycoon, Cake Mania and skill games competition powered by King.com such as Mahjong Treasure, Klick, Klack & Roll, Carnival Shootout, Deal or No Deal and others which can be played for real and win cash, or play for free and improve your skills.
  5. MSN Games (zone.msn.com) – Free online games or download free games for quick break or hours of fun such as Alchemy, Backgammon, Bejeweled 2, Bespelled, Bicycle Texas Hold’Em, Bridge, Chainz 2, Chuzzle, Collapse!, Cubis, Cubis 2, Gem Shop, Hearts, Hexic, Luxor, Mah Jong Tiles, Scrabble Blast, TextTwist, Zuma, Bricks of Egypt, TV to Film Trivia, Bejeweled by Ant Bully and many more. Some games are cash games that can be played for cash.
  6. AOL Games – now games.com – Free online games similar to Pogo such as Gold Miner Vegas, Showbiz Slots, Lottso!, Jungle Gin, Blooop, QWERTY, Squelchies and features World Series of Poker in Texas Hold’em, Seven Card Stud, Five Card Draw, Omaha and Razz plus lots of games cheats, tips and tricks.
  7. Free Online Games (www.freeonlinegames.com) – Lots of simple free online games in the category of Adventure Games, Arcade games, Board Games, Car Racing Games, Card Games, Downloadable Games, Fighting Games, Flash Movies, Flying Games, Fun Games, Multiplayer Games, Puzzle Games, RPG Games, Shooting Games, Skill Games, Sound Board Games, Sports Games, Word Games, and Xiao Xiao.
  8. Miniclip (www.miniclip.com) – RuneScape, Heli Attack 3, Club Penguin, MotherLoad, Trials Mountain, World Cup Soccer, Motocross Fever, Show Jumping, Superman Returns, Puzzle Pirates, Roly Poly, Robot Rage, Stuntman and others.
  9. FetchFido (www.fetchfido.co.uk/games) – A Great Collection of Addictive Free Online Game such as Eskiv 2, Paintball, Bantumi, Dumbolf, Crazy Pool, Base Jumping, Blast Billiards, Elastic Soccer, Yard Invaders, Monkey Diving, Snow Fight 3D and others.
  10. Riddler (defunct) – Drag Race, Scrambler, Web Boggle, Golf, IQ Trivia, Doubletake, Mahjongg, Cyber Darts, Connect Five, Speed and others in Word Games & Trivia, Shooting Games, Multiplayer Games, Classic Riddler Games, Puzzles & Brain Games and Action & Sports Games categories.