It appears Bethesda’s will be launching the free Wastelanders expansion on April 14th, even during the COVID-19 pandemic. They’re also releasing a Steam version on the same day Wastlanders launches.
Those who have played the game through the Bethesda.net launcher have the option to play on Steam via a special offer. Now through April 28th, if you’ve already purchased Fallout 76 on Bethesda.net, you can get the game on Steam for free. Just link your Steam and Bethesda account before 11:59 p.m., April 28th. You can do that, here.
However, you will not be able to transfer your Atoms or Fallout 1st membership balance between Bethesda.net and Steam. Atoms you earn are specific to one platform or the other. Items you’ve purchased through the Atomic Shop will be available on both launchers.
If you haven’t purchased Fallout 76 on Bethesda.net, there’s another special offer for buying it on Steam. Purchasing Fallout 76 from April 14th through April 28th on Steam (either standard Fallout 76: Wastelanders version or the Fallout 76: Wastelanders Deluxe Edition), you’ll receive the Fallout Classic Collection. That includes Fallout 1, Fallout 2 and Fallout Tactics — for free.
Those who activate their free Steam copy will also be getting the Fallout Classic Collection during the two-week post-launch window.