There's a multiplayer mod for The Witcher 3 so you can turn one of the finest singleplayer RPGs of all time into an MMO instead

A modder called rejuvenate, previously responsible for the Wolven Trainer (which bundles together freecam, a time-of-day ...
Adventure Gamers

The Witcher 3 just became a co-op RPG, thanks to this mod

You can now play The Witcher 3 co-op thanks to a new mod. Here's the lowdown on Witcher Online and how to get it for yourself ...

You can play The Witcher 3 in multiplayer now

"The focus of this mod is to allow you to see other players on their adventure exploring throughout the world," rejuvenate ...
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New Witcher 3 mod adds multiplayer

Gamers can now enjoy The Witcher 3: Wild Hunt in multiplayer, with one big catch.

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.