I like pirates, which might be evident from my ghostly green skull-and-bones monkey icon.
And I've played a LOT of pirate-themed games which, to put it politely, suck bilgewater.
Leave it to Disney to create a fun little desktop diversion called Desktop Galleon, buryed deep within their new Pirates Online website (beta):http://preview.tinyurl.com/38n3uu
It's a wee little freebie that installs a gorgeous pirate ship on your desktop. You can sail it around using the cursor keys, and when you're ready for fun, engage BATTLE MODE! Then wave after wave of enemy ships come to attack, and of course the ones you vanquish yield gold and rum. Collect enough booty and you can unlock "treasures" from the Disney pirates website: usually behind-the-scenes art for the new online game (meh).
Note that the ship actually does sail ON YOUR DESKTOP, among your wallpaper and icons. Outside of battle mode, you can optionally leave the ship anchored on your desktop so it's ready when you are for a quick diversion.
It's absurdly easy to play, but gets more difficult with each passing wave of ships. I was pleasantly surprised at how well engineered this little gem is.