Midnight on a Tuesday is a perfect time to take your place by the hearth.

Blizzard just unleashed the latest episode in its Curse of Naxxramas add-on for Hearthstone. The Military Quarter, as the new section is called, opens up three new single-player boss battles in the free-to-play card game for anyone that purchases the content. It’s available now on PC, Mac, and iPad for $7 or 700 in-game gold — although you can get a discount by purchasing the entire season at once.

As with the previous Naxxramas areas, beating The Military Quarter will unlock a handful of new cards for players to use. The cards from the prior two episodes are already shaking up decks in the head-to-head multiplayer mode, and these will likely have a similar effect.

With the Military Quarter out in North and South America, the latest episode is now live in all of the supported territories around the world.

Curse of Naxxramas is Blizzard’s first attempt at releasing a major content update for Hearthstone, which is also its first free-to-play game. The company reported today that the game contributed heavily to its revenues during the second quarter. It’s likely that Naxxramas, which didn’t start rolling out until the start of the third quarter, will lead to the game bringing in even more cash.