One of my all time favorite board games I've had for nearly 20 years. (Boy that really makes me sound old.)
The Omega Virus is a board game that you the players must race to save Earth from a malefic computer virus that plans to destroy the human race by crashing BattleSat1 into the planet. Players must search the various rooms of the space station, build your arsenal, then find and destroy the virus before time runs out.
There are two unique qualities to this game. One, you can play on your own. Two, it has a computer. (It takes AA batteries by the way.) You see while playing the game there will be an actual Omega Virus taunting you and attacking the players as time ticks away. The game has three difficulty settings and the location of the virus changes each game.
I laugh each time when I play because the stations computer will plead for help while the virus will mock it. Playing with others is even better because you are able to attack, steal, and destroy items from other players. It's hilarious when the virus will call out a player saying it's going to destroy them and they have this look of "Why me?!" then get attacked.