You can now play Witcher 3's entire campaign in multiplayer, which is a perfect excuse to return to The Continent with pals

As if one Geralt wasn't enough, this Witcher 3 mod allows you and your friends to play as monster hunters together.
Rock Paper Shotgun

The Witcher 3 now has online multiplayer thanks to a mod, allowing gaggles and gangs of Geralts to gather

As much as single-player solitude's a big reason why I love getting lost in The Witcher 3, running around its world with a ...
IGN

The Witcher 3 REDkit Goes Live Alongside New Patch That Enables DLC-Sized Mods

The Witcher 3 now has REDkit, a comprehensive and advanced modding tool for PC that enables the creation of DLC-sized mods. All who own Witcher 3 on PC can now download REDkit through GOG, Epic Games ...