I'm a concerned christian dad of five kids in Canada.  I'm looking for
a list of web links to online multi player interactive games that are
safe from excessive violence, language,virus',popups & links to bad
websites.  For children approximately 15 yrs. and under.  Preferably
games with free trial level.  An example, but not one I approve of
because of its magic and mysticism in the upper levels is Ruescape
found at www.miniclips.com

well i might reccommend game spy arcade. You can download and play
many many trials of games that other users also enjoy and play online.
some trials are so popular that hundreds of people play them. Gamespy
is fiarly virus and spyware free, i say that because im not aware of
any but their could still be some. you would download the arcade
software which is free and you can play many games like checkers and
chess already and free, but you can also play virtualy any game you
purchase or any of those trials which are usualy found advertised on
their site for download.
may other commenters help tool.
another simliar would be msn ZONE, but that is not the safest
environment however they do have many many free games you can look at.

http://www.gamespyarcade.com/

http://zone.msn.com/en/root/default.htm

try this

http://www.kidsdomain.com/

hello how are u?
i find this sites:
http://www.zalzalak.com/games/
http://www.gamesdex.com
http://www.uproar.com/
http://internetgames.about.com/
http://www.kidscom.com/games/games.html
http://familyinternet.about.com/od/funforkidsonline/
www.funbrain.com
www.worldvillage.com/kidz/games
www.kidsolr.com/internet_safety/www.freebielist.com/games.htm

I've personally tried this game out

www.mediwar.com

it's a browser game and you can't have more than one account on the
same IP so it might not be what you're looking for, but it's free, and
quite challenging.