Not content with the Pip-Boy Games Bethesda included in Fallout 4 ? It turns out, you have options. To be more specific, a Nexusmods user named no1dead has created a Fallout 4 mod that makes DOOM playable on your Sole Survivor’s Pip-Boy.
How does it work? Pretty easily. You grab the 1MB file from Nexusmods and pop it into your Fallout 4 file. Since the game doesn’t really have official mod support yet, you also need to tweak the Fallout4.ini file.
The only downside is, this Fallout 4 mod replaces Red Menace. So if you enjoy that Donkey Kong clone, maybe don’t apply this mod just yet.
Source: Nexusmods