Wing Commander II: Vengeance of the Kilrathi is the sequel to the original Wing Commander, and is the second in the Wing Commander series.
The game is, like it's predecessor, a space combat simulator. It was produced and published by Origin systems, and designed by Chris Roberts. The game was released in 1991 for PC only.
Wing Commander II isn't that different from the original Wing Commander. Once again, you are a pilot fighting for the Terran Federation against the Kilrathi. At the beginning of the game, your ship from the last game, the Tiger's Claw, is destroyed, and you are blamed for it. Ten years later you save the confederation flagship, giving you the opportunity to prove yourself and clear your name. The game has new weapons as well as new ships, for both the Terran Federation and the Kilrathi. A greater emphasis is also put on storytelling, with animated cutscenes, and even voice acting in an expansion pack.
The game doesn't change the formula up much from the original, but it does polish and shine its gameplay. Wing Commander II is an improvement on the original in almost every way. The plot is improved, as are the special effects, and graphics. The difficulty is bumped up a few notches as well. If you enjoyed the first game, you definitely need to check out the second.
The title was followed by two expansions, called Wing Commander II: Special Operations 1 and Wing Commander II: Special Operations 2.