http://www.addictinggames.com/risk.html
On the website above they have a risk game that gives you a turn limit to complete world domination against 2 computer adversaries.
Some quick notes b4 joining/thinking of joining
1. Deployment is done with everyone starting with 1 on each of their terr and goes 1 army seq by 3 players. This normally wouldnt be bad it seems that wherever you choose to deploy, the computer deploys right next to you which gets annoying
2. When attacking, you must move a min of how many dice you used to win. I.E. if you won the battle with 3 dice you are forced to move 3 over, win with 2 dice you must move at least two over etc
3. All forts are chain ( 1 fort per fortifying round)
4. cards are esc, and just like the board game : artillary,rifleman, and calvary
5. There is a turn limit to win or its a draw
****all in all its alright for a free game but the computers moves do get annoying as they seem to have no rational besides being loosely based on you****
WMW