The game is not a direct sequel to its predecessor Fallout 3, but follows events referenced in Fallout and Fallout 2 and features the return of elements from Fallout 2.

9.3 Random unlit geometry when using Pip-Boy light.9.2 Rotating Heads/Floating, non-animated NPCs.5.6 Enabling HBAO+ for Nvidia graphics cards.5.5 Enabling SSAO for all graphics cards.3.2.1 Yukichigai Unofficial Patch (YUP).