Assassin’s Creed Shadows finally launched on Thursday, and Mac gamers can play the action-packed, role-playing game from Ubisoft at the same time as players on PCs and consoles. Mac owners won’t face the usual wait of months or years. There’s even a version for iPads with M-series processors in development. The adventure is set in medieval Japan, and players can choose either a samurai or a shinobi (aka ninja) for very different gaming experiences. Assassin’s Creed Shadows for Mac launch date: March 20 For decades, everyone overlooked the Mac as a gaming platform. You can chalk up much of that…