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MechWarrior 3: Pirates' Moon (1999)
Zipper Interactive
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Performance Warning: Barely able to run on the latest desktop CPUs.
MechWarrior 3: Pirate's Moon is the only expansion pack for MechWarrior 3, with an all new storyline and 20 new missions, plus six new mechs, brand new terrains, and a number of weapons. The player can select either Campaign Missions or Pirate Missions which contain respective stories.
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Performance Warning: Barely able to run on the latest desktop CPUs.
Save to cloud (Gold member only). 
Save to local browser storage. 
Save and download the save file.