Thanks to a suggestion from Jim over on the Tanks, The Game page, I found Storm the House, which is another fantastically addictive little game.
The deal is, you are hunkered down in your cozy little bungalow as a bunch of armed bandits are trying to rape and pillage. It’s your job to shoot them before they get close enough to violate you.
Every time you clear a level, you are given some money and the ability to spend it on upgrades such as hiring gunmen to help you protect your hacienda, or perhaps even a nice little rocket launcher to unleash hell and carnage from the sky!
Don’t forget, there are nearly 40 other games to waste your time here.