Purpose of this thread is to list mods that have good story content and/or gameplay suitable for playing to completion for each game.
Mods that are minor such as horse armor are not intended for this thread.
This is also not a game fixes thread although in some cases there may be some confusion there. If a game does not work at all or well without it, if t's deemed necessary to play the game today, or if it's rare then it can be added.

GAMES

Alan Wake
Alice
Alien Isolation + Crew Expendable + Last Survivor
Alice Madness Returns
Alien Versus Predator 2
Alone in the Dark
Assasin's Creed
Back To The Future The Game
Baldur's Gate 1
Baldur's Gate 1 Tales of the Sword Coast
Baldur's Gate 2

BattleZone 2
Update: BZ2_v1.3.7.2_PublicBeta
http://matesfamily.org/bz2/
https://web.archive.org/web/20180306020943/ht … _PublicBeta.zip

Bayonetta

BioShock
Silver's Bioshock mod Version 7.2 Alpha https://www.systemshock.org/index.php?PHPSESS … 65&topic=1128.0

BioShock 2 + Minerva's Den
Bioshock Infinite + Burial At Sea Episode 1 + Episode 2
Black Mesa- (MOD)
Black Mesa

Blood
Blood Music Pack http://sc55.duke4.net/games.php#blood
Blood MapPack 2019 http://www.baitd.bloodgame.ru/files/bme_ilmhb … MapPack2019.zip

Borderlands 2
Borderlands The Pre-Sequel
Bulletstorm
Chronicles of Riddick Dark Athena
Chronicles of Riddick Escape From Butcher Bay (Dark Athena)
Close to the Sun
Control
Crusader No Remorse
Crysis
Crysis WarHead
Crysis 2
Crysis 3

Curse of Monkey Island
ScummVM https://www.scummvm.org/

Dark Mod https://www.thedarkmod.com/main/

Darkstone
Dead Island
Dead Space
Dead Space 2
Dead Space 3

Deus Ex
GMDX https://gmdxmod.com/
The Nameless Mod https://www.moddb.com/mods/the-nameless-mod

Deus Ex: Invisible War
Visible Upgrade https://www.ttlg.com/forums/showthread.php?t=147423

Deus Ex: Human Revolution
Deus Ex: Human Revolution The Missing Link
Devil May Cry 5

Diablo
Diablo 1 HD Mod https://mod.diablo.noktis.pl/download
The Hell http://www.thehell.narod.ru/downloads.html

Diablo 2
Diablo 3 + Reaper of Souls
Dishonored + The Knife of Dunwall + The Brigmore Witches
Dishonored 2
Dishonored Death of the Outsider
Doom
Doom 2
Doom 3
Doom 3 BFG Edition Resurrection of Evil
Doom (2016)
Doom Eternal
Dragon Age Inquisition
Drakan

Duke Nukem 3D
eduke32-dos https://gitlab.com/NY00123/eduke32-dos/
eduke32 for win95 eDuke32 for Win95

Dungeon Keeper
KeeperFX Unofficial https://github.com/Loobinex/keeperfx-unofficial

Dungeon Keeper 2
Dying Light
Enter The Matrix
Escape from Monkey Island
Fable (XBOX)
Fallout
Fallout 2

Fallout 3 + DLC
Fallout 3 Unofficial Patch https://www.nexusmods.com/fallout3/mods/19122

Fallout 4

Fallout New Vegas (Dead Money, Honest Hearts, Old World Blues, Lonesome Road)
Tale of Two Wastelands: https://www.nexusmods.com/fallout3/mods/19122

FarCry
FarCry 3 Blood Dragon
FarCry 5
F.E.A.R
Freelancer

Full Throttle
ScummVM https://www.scummvm.org/

Game of Thrones Episode 1+2+3+4+5+6
Gears of War
Grand Theft Auto Episodes From Liberty City
Grand Theft Auto San Andreas
Grand Theft Auto V
Grim Fandango
Half-Life
Half-Life 2
Half-Life 2 Episode 1
Half-Life 2 Episode 2
Half-Life 2 Lost Coast
Halo
Halo The Master Chief Collection - Halo Reach + Halo + Halo 2
Hexen
Heretic
Hitman Blood Money
Indiana Jones and the Last Crusade
Ion Fury
Jade Empire (XBOX)
Just Cause 2
Just Cause 3 + DLC
Just Cause 4
Life is Strange Episode 1+2+3+4+5
Mad Max
Magic Carpet 2
Mass Effect
Mass Effect 2
Mass Effect 3
Mass Effect Andromeda
Max Payne
Max Payne 2
Max Payne 3
MDK 2
Megarace 2
Mean Streets
MechWarrior 2
Mechwarrior 4
Messiah
Metro 2033
Metro Exodus + Sam's Story + The Two Colonels
Metro Last Light
Mirror's Edge
Missionforce CyberStorm
Monkey Island 1

Morrowind
Morrowind Rebirth https://www.nexusmods.com/morrowind/mods/37795

NeverWinter Nights (Bioware)
NeverWinter Nights 2
Nier Automata
Ninja Gaiden (XBOX)
No One Lives Forever
No One Lives Forever 2
Oblivion
Oblivion: Shivering Isle
Outpost 2
Painkiller Gold Edition
Planescape Torment
Portal
Portal 2
Prey
Prey (2017)
Prince of Persia The Sands of Time (XBOX)
Psychonauts

Quake 1
QDOS http://dk.toastednet.org/QDOS/

Quake 2
Q2DOS http://dk.toastednet.org/Q2DOS/

Quake 4
Quantum Break
Rage
Rage 2
Red Faction
Red Faction Armageddon
Red Faction Guerilla
Redneck Rampage Rides Again
Resident Evil 2
Resident Evil 7
Return to Castle Wolfesntein
Rex Nebular
Rise of the Tomb Raider
Rune
Saints Row 3
Saints Row 4
Saints Row Gat out of Hell
Sam & Max Season 1
Sam & Max Season 2
Sam & Max Season 3
Secret of Monkey Island Special Edition
Serious Sam
Serious Sam 2

Shadow Warrior (1997)
BuildGDX https://m210.duke4.net/
VoidSW https://dukeworld.duke4.net/eduke32/synthesis/

Shadow Warrior (2013)
Shadow Warrior 2
Skyrim + DawnGuard DLC + Dragonborn DLC
Sleeping Dogs
Soma
South Park The Stick of Truth
Space Quest 5
S.T.A.L.K.E.R
S.T.A.L.K.E.R Call of Pripyat
Star Trek Borg
Star Trek Klingon
Star Trek Elite Force 2
Star Trek Voyager Elite Force
Star Wars Episode 1 Racer
Star Wars Jedi Knight Jedi Academy
Star Wars Jedi Knight 2 Jedi Outcast
Star Wars Knights of the Old Republic
Stasis
State of Decay: YOSE

Strife
Chocolate Strife https://www.chocolate-doom.org/wiki/index.php … hocolate_Strife

Subnautica

System Shock
Toxic Frog's High Resolution Patch https://www.systemshock.org/index.php?topic=115.0
Shockolate https://github.com/Interrupt/systemshock
System Shock Portable https://www.systemshock.org/index.php?topic=211.0

System Shock 2
SS2Tool https://www.systemshock.org/index.php?topic=4141.0
SS2 Community Patch (SCP) Beta 4 https://www.systemshock.org/index.php?topic=7116.0

Tales from the Borderlands Episode 1 + 2 + 3 + 4 + 5
Terminal Velocity
Tesla Effect: A Tex Murphy Adventure

The Longest Journey
ResidualVM https://www.residualvm.org/

The Simpsons Hit & Run
The Walking Dead Season 1 + 400 Days DLC
The Walking Dead Season 2 Episode 1 + 2 + 3 + 4 + 5
The Wolf Among Us Episode 1 + 2 + 3 + 4 + 5
Thief (2014)

Thief
TFIX https://www.ttlg.com/forums/showthread.php?t=134733

Thief 2
T2FIX https://www.ttlg.com/forums/showthread.php?t=149669

Thief - Deadly Shadows
Sneaky Upgrade https://www.ttlg.com/forums/showthread.php?t=138607

Tomb Raider (2013)
Torchlight
Tribes Vengeance

Tron 2.0
Killer App Mod https://www.moddb.com/mods/killer-app

Undying
Vampire The Masquerade Bloodlines
Warcraft 2 Tides of Darkness
Warcraft 2 Beyond The Dark Portal
Wolfenstein 3D
Wolfenstein The New Order
Wolfenstein The Old Blood
Wolfenstein II: The New Colossus