Here’s a site that offers free online games; they are mostly graphic and arcade stuff, however the selection is just great, including stuff in many categories, like action, adventure, arcade, board, card & casino, driving, point and click, puzzle, riddles, room escape (this one is a great one, really), sport, strategy and board. Most games are designed to be played online by one player, but there is a small assortment of multiplayer and downloadable games.
The site aims to take care of copyright issues, so no unauthorized games are available from Gamershood.com. 
