yes
If you get call of duty black ops there is a zombie mode and you can play it online.(There are other call of duty's with zombie modes.)
no
There are lots of fighting gun games, sign up required: * Sanctioned Renegades (Download Required) * Sherwood (No signup is required-no download is required)
on the xbox 360 you could play many games and if you go to the market place on the xbox you could download the games and yes there is a online multiplier uno there
There is a link in the related links that has a list of multiplayer online games, both free and paid.
There are many different non-violent online multiplayer games and I am going to list some for you. Some non-violent online multiplayer games are Feralheart, The World, and many more.
There are many websites which have free online multiplayer games. For instance, Texas Hold'em and the game called Scrabble are multiplayer games and are available to play through websites such as Pop Cap. Game Sheep and Free Arcade also have multiplayer games.
i know one game called Begone. try this link http://www.nplay.com/BeGone/
If you don't want to download it then you must make do with less graphics. Some posibilites include Landgrab and other PHP written games. There are a plethera of Mass Multiplayer Online(MMO) strategy games.
Combat Arms, sponsored by Nexon, has a game mode called Quarantine Mode where you can play as an Infected Zombie (and infect other humans) or fight as a human and try to stay alive until the game ends.
The most popular online multiplayer game in North America is currently League of Legends. Other popular online multiplayer games include World of Warcraft and Guild Wars 2.
Mara pets is FREE, Fun, and no download!!! Just follow the link below!! Also Cosmictopia.com is good place to play online games also multiplayer games.. You can play free at yepi2.co and yepi-juegos.com