Cult of the Lamb received a free DLC pack in August 2024 called Unholy Alliance. This content update introduced local co-op to Cult of the Lamb, which explains its title. Even though that was its main focus, there was more to this update. It also brought a highly-requested transmog system to Cult of the Lamb, allowing gamers to change the appearance of the Lamb's Fleeces, so they can take advantage of a Fleece's powers and stats but make it look like their preferred outfit.