Vassal is an online table top. It has a dice generator and graphics which represent the necessary labels and counters from some of your favorite games. Once downloaded you will be able to play War at Sea live time one your PC or over the internet. There is even a play by email like feature.
To play you will need to download the following files:
2. War at Sea Vassal Module Download from Dropbox (latest version 0.881)
Here is a trial scenario starting just before the ship placement phase.
Helpful information can be found here.
Click Here for some information I copied from the below PDF on connecting to play War at Sea live time with an opponent from across the world!
Have fun and post any hits or tips for my module to http://aaminis.myfastforum.org/forum4.php