The answer to this question is hard to determine, as the game of blackjack can vary from casino to casino. However, some experts believe that the game of blackjack is not really a Hard Rock casino game. This is because Hard Rock casinos are known for their music and entertainment venues, and not for their casinos.
Additionally, Hard Rock casinos do not offer comps or free chips for blackjack players. This leaves the game of blackjack as a purely gambling activity.
Ultimately, whether or not the game of blackjack is played at a Hard Rock casino is up to the discretion of the casino management. However, given that Hard Rock casinos are known for their music and entertainment venues, it seems unlikely that blackjack would be a featured game there.