Multiplayer is grayed out

[bullettrain101]

I bought this game on GOG, but I can't select Multiplayer, COOP or Downloadable Content tags. Does the GOG port not have multiplayer? Or do I need to play a certain amount of the game to unlock it?

[Rubenjackson]

Originally posted by bullettrain101:

I bought this game on GOG, but I can't select Multiplayer, COOP or Downloadable Content tags. Does the GOG port not have multiplayer? Or do I need to play a certain amount of the game to unlock it?

On the pcgamingwiki page it says that the GOG version only has single player mode. So cooperative and multiplayer content cannot be played.
As I am seeing in a GOG thread in 2019, one person says that it was surely implemented through Steamworks, steam's multiplayer api. Because GOG offers its own version, they may have ruled out activating multiplayer content.
Anyway, in multiplayer you don't miss a thing. Story mode is what the game focuses on.