It's tuesday and time for the second game in the Ubisoft Week-Long Sale on OnLive. And the game on sale is Silent Hunter 5: Battle of the Atlantic, which is 75% off, to make it a cool $7.5. If you have the PlayPack, you can get the game for $5.25.
You can play the free demo of Silent Hunter 5: Battle of the Atlantic powered by OnLive.
Here's more info about the Ubisoft Week-Long Sale days 3, 4, 5, 6, 7.