https://www.polygon.com/2018/3/4/17077650/starcraft-20th-anniversary-skins-overwatch-diablo-3-remastered-hearthstone-wow-blizzard >The original StarCraft turns 20 years old on March 31, and Blizzard Entertainment is celebrating that anniversary with a series of streams and in-game giveaways. The celebration will extend to all of Blizzard’s active games, with skins and in-game rewards coming for Diablo 3, Hearthstone, Heroes of the Storm, Overwatch, StarCraft 2, Starcraft: Remastered and World of Warcraft. >Here’s a peek at what Blizzard has in store for players for StarCraft’s 20th anniversary, followed by how players can earn these in-game rewards.