The Xbox store page for Fallout 4 has updated their listing, now giving a 28.12 GB file size for what will no doubt be one of fall’s biggest games. This is still much bigger than any previous Bethesda game on the HD consoles. Fallout 3 was 5.48 GB, Fallout: New Vegas was 4.75 GB, and their most recent game, The Elder Scrolls V: Skyrim was 3.68 GB on the Xbox 360.
These file sizes may not reflect patches released post-launch, as some day one patches have been known to enlarge the base file size significantly such as Batman: Arkham Knight‘s over 3 GB day one patch on PlayStation 4. Whether Fallout 4 will contain a day one patch remains to be seen.