It seems like they are missing a great chance to get some money from these pirates. DLC. The pirated version of the game offers a DLC to add DRM to your games.

It seems like they are missing a great chance to get some money from these pirates. DLC. The pirated version of the game offers a DLC to add DRM to your games. It doesn't stop piracy, and can occasionally cause boycots of your game, but it keeps the game playable. Paid players get a game they enjoy, pirates who might buy, might buy a DLC so they can keep playing.