Newgrounds.com, AddictingGames.com and Kongregate.com are all websites that provide free online games. The games on these websites do not require a download and are powered with Adobe Flash.
The genres of free online games on these websites include role playing, strategy, job simulation, dress up, and shooter games. It also offers puzzle, adventure and rhythm games.
Another way to play free games online involves downloading a larger game and installing it onto a computer. Many games, including popular hits such as "World of Warcraft" and "League of Legends," provide a free online gaming experience that requires a download in order to play.