4. Star Trek: Deep Space Nine - The Fallen (2000)
Fans of the series know that Deep Space Nine offered arguably the most interesting setting of any Star Trek show, and The Fallen gives players a chance to explore this strange, mystical, and dangerous world. Set near the end of Season Six, players must guide members of the DS9 crew as they try desperately to prevent the Cardassians from obtaining a newly re-discovered and powerful Orb, one that could destroy Bajor and give them ultimate control over the quadrant.
The game is actually three games in one, as players can choose to play as Sisko, Kira, or Worf, with each character offering different perspectives (via unique levels) on the overall story. Major cast members (with the unfortunate absence of Avery Brooks) lend their voices to the game, giving this third-person adventure and shooter a truly authentic feel. The Fallen also used the Unreal Engine, making it one of the best looking games at the time of its launch, and eliciting praise from critics and gamers alike.