The short answer is no, you generally cannot play RedM with a cracked or pirated version of Red Dead Redemption 2 (RDR2)

Defeated, Silas looked at the "Outlaw" shortcut on his desktop. It worked for the solo trail of Arthur Morgan, but the world of RedM—a world filled with real people, doctors, miners, and lawmen—was a ghost town he could never enter. He realized that to join the community, he couldn’t stay a digital pirate forever; he’d have to buy his way into the gang.

Run the Game Once: You must launch the official game at least once to verify the files and sign in to Social Club.

There is no “hot crack.” If there were, every major RP community would be flooded with cheaters and ban evaders. The fact that RedM remains relatively clean is proof that the protection holds.

• WhyEm’s DLC (adds hundreds of clothing items)
• Red Dead Offline (brings multiplayer content into story mode)
• Crime and Law Rebalance
• Gun Metal Rework