Russian propaganda is spreading into the world’s video games. In Minecraft, the immersive game owned by Microsoft, Russian players re-enacted the battle for Soledar, a city in Ukraine that Russian forces captured in January, posting a video of the game on their country’s most popular social media network, VKontakte. A channel on World of Tanks, a multiplayer warfare game, commemorated the 78th anniversary of the defeat of Nazi Germany in May with a recreation of the Soviet Union’s parade of tanks in Moscow in 1945. On Roblox, the popular gaming platform, a user created an array of Interior Ministry forces...