Bethesda has said the Fallout 4 Season Pass will cost $30 (around Ł20) and those who buy it will get all of the Fallout 4 DLC the developer ever creates.
In a post on Bethesda.net, the developer said the first Fallout 4 DLC will come out early 2016, following the game's November 2015 launch.
"We've always done a lot of DLC for our games," Bethesda said.
"We love making them and you always ask us for more. To reward our most loyal fans, this time we'll be offering a Season Pass that will get you all of the Fallout 4 DLC we ever do for just $30.
"Since we're still hard at work on the game, we don't know what the actual DLC will be yet, but it will start coming early next year. Based on what we did for Oblivion, Fallout 3, and Skyrim, we know that it will be worth at least $40, and if we do more, you'll get it all with the Season Pass."
Bethesda has good form when it comes to add-ons for its games. Between January and August 2009, Bethesda released five DLC packs for Fallout 3: Operation: Anchorage, The Pitt, Broken Steel, Point Lookout and Mothership Zeta. Perhaps we'll see something similar for Fallout 4.
The DLC is in addition to "regular" free updates to the game, Bethesda said, which will come with fixes and new features.
"We'll be doing regular free updates to the game, and like Skyrim, these will come with not just fixes, but new features. For Skyrim we added things like mounted combat, legendary mode, kill cams, visual enhancements and more. We'll work with all of you to figure out what new things you'd love to see added to Fallout 4, whether they are small tweaks or new features."
Meanwhile, Bethesda said it will release the new Creation Kit for the PC early 2016. You can use this to create Fallout 4 mods and share them with others. These mods will eventually come to Xbox One, and then PlayStation 4.