Copy all contents of this folder into base game folder (Basically move this folder to steamapps/common and replace)
mods found in CustomPaks folder
move them into CustomPaks/Disabled to disable them

gamedll_x64_rwdi.dll allows you to use weapons in safe zones
winmm.dll loads IncreaseSaveSlot.asi which changes your save slots to 10
dsound.dll loads mods from CustomPaks, you can look at the console by pressing F5 In-game
Dying Light Manager.exe is optional, but you must have any person playing with you also use it
DyingLightBackpackEditor_v3.5(EN_Ver.).ct is a cheat table for editing your backpack
Shader folder holds a reshade preset to be used with DLEiF (mod) which is enabled, unless you don't wanna run reshade, you should (probably) disable that mod

All original files are in Original Files folder, which for now just includes gamedll_x64_rwdi.dll as nothing else is replaced
To uninstall everything just remove winmm.dll and dsound.dll and replace gamedll_x64_rwdi.dll with the orignal

Back your save files up first and don't hold me accountable if you didn't read this
"...\Steam\userdata\*steamid*\239140\"

Add -nologos to your games' launch options