Pilgrim—Dread the Commonwealth ⭐
Fallout 4 can be a bit spooky from time to time, and often startling when ghouls come lunging toward you, but it's not a horror game. You can make it one now, though, using a mod called Pilgrim—Dread the Commonwealth. Dread is definitely the right word: just watch the trailer above and see Fallout 4 turned into what looks like a mix of the Stalker games and The Road. Pilgrim combines a horror-based ENB with an overhaul of Fallout 4's weather system, citing as inspiration the 2015 film The Witch, directed by Robert Eggers.
Frost Survival Simulator
If you're looking for a real survival experience in Fallout 4, this mod turns Bethesda's RPG into a freeform survival game set just after the bombs have dropped. There are no quests: your goal is simply to survive in an extremely deadly environment. Most NPCs have been removed, there are new and deadlier enemies to battle, and the surface world is extremely radioactive so you can't venture outside without protective gear. It's a harsh and deadly way to play for those interested in a real challenge.
Tired of Fallout 4's holotape minigames? Here's something a bit more entertaining. It's a mod called Revolted, and it gives you a custom retro 1990s-style corridor shooter that you can play inside Fallout 4. The mod, created by Cohagen, has a pulse-pounding chiptune soundtrack, wonderfully stilted and over-serious voice acting, and some 2D digitized sprites sprinkled into the 3D levels for some added nostalgia. You'll find it in the Concord Speakeasy, playable on a computer terminal located on the second floor.
Beantown Interiors Project
There are lots of boarded-up buildings in Fallout 4—a little too many, considering the world is full of raiders who would certainly have forced their way inside by now. This modder's goal is to add custom interiors to all of these buildings (eventually), as was done to Fallout 3 and New Vegas. Not only does it give you need places to loot and explore, it makes the world a bit more realistic.
This mod connects most of Fallout 4's subway stations with tunnels, giving you a new way to crisscross the dangerous world: by scurrying beneath it. The tunnels aren't abandoned but are home to ghouls, raiders, and other enemies. They will have to be dealt with before you can travel safely, but once you clear them out they won't repopulate and you can enjoy safe passage. You'll also find some beds down in the tunnels—useful if you're a survival mode enthusiast.
Played through Fallout 4 a few times and looking for a new roleplaying experience? Alternate Start lets you skip the standard introduction and begin playing as someone other than a Vault dweller. You can begin your game as a newcomer to Goodneighbor, a raider or merc for hire, a member of the Church of Atom, or a passenger aboard a sinking ship. It's a fresh start and a new way to play.
On the next page, new weapons and gear.