'Under Siege' includes a defensive component. The silly game has inspired many sequels over the years, but the latest release, 'Worms: Forts Under Siege,' adds a new spin to the title's traditional game play. The premise: Two warring squads of worms are spread out on a huge map and take turns using devastating but zany weapons to destroy each other. Nearly 10 years ago, a little-known British game developer, Team 17, introduced the world to a quirky strategy game called 'Worms.'
