What are some alternatives?
Newgrounds - A community of artists, game developers, musicians, voice actors and writers who create and share some of the best stuff on the web!
Kongregate - Kongregate has free games that you can play online. Choose from thousands of free flash games.
Shockwave - Shockwave.com is the ultimate destination for free online games, free download games, and more!
Friv - A safe place to play the very best free games!
Ninja Kiwi - Ninja Kiwi, creators of awesome free online games.
Nakama - Nakama is an open-source distributed social and realtime server for games and apps.