Epic Games Store 'Mystery Game' Unveiled In New Leak KEY POINTS Every character in "The Lion's Song" has an unparalleled mind Its 'mystery game' is expected to be unveiled on May 21 The mystery game that Epic Games Store has been teasing for several days may have been unveiled in a new leak. When Epic Games Store updates a new free title, it will unlock the mystery game. According to a prominent industry insider HypeX, the said game is none other than "NBA 2K21." "NBA 2K21 is most likely this week's Free Game on Epic Games Store," the insider revealed. Moreover, the insider has noted that the digital video games storefront would announce on May 20 that the "FREE: The MEGA Sale Vault is Open." Fans would also reportedly see the text, "You’ve never been closer to the game. NBA 2K21 brings you the next generation of basketball, totally for FREE!"