Blizzard marks StarCraft's 15th anniversary with achievement, portrait reward, wallpaper

Blizzard Entertainment launched the original StarCraft 15 years ago this weekend, and the studio announced Friday that it is marking the milestone with a new achievement and special rewards for StarCraft 2 players.

StarCraft was released March 31, 1998, and from today through 2:59 a.m ET on April 18, 2013, StarCraft 2 players will be able to unlock a new Feat of Strength achievement to earn three portrait rewards featuring the original Protoss, Terran and Zerg StarCraft box art. In order to unlock the achievement and portraits, StarCraft 2 owners will have to play one online game in Arcade, Custom, Ranked, Unranked, Training or Versus A.I. mode.

Blizzard is also releasing a commemorative desktop wallpaper with the Protoss Zealot, Terran Marine and Zerg Hydralisk; you can see it above, and download the appropriate size for your desktop here. You can also check out the art for the portrait rewards below.