Question: Heavy Gear II is a sequel to a game that was released in what year?
Related documents: [0]  [DOC] Heavy Gear is a 1997 computer game based on the "Heavy Gear" role-playing game. A sequel, "Heavy Gear II", was released in 1999. [END] 
[1]  [DOC] Heavy Gear II is a mecha based first-person shooter video game. Set in Dream Pod 9's Heavy Gear universe, the game was developed and published by Activision in 1999 for Microsoft Windows, it was ported to Linux in 2000 by Loki Software. It is a sequel to the 1997 video game "Heavy Gear". [END] 
Answer: 
1999
1999