Crossplay

Is The Witness crossplay?

Crossplay does not apply to The Witness: it has no online multiplayer.

The Witness was the seventh game released by interactive fiction pioneers Infocom. The player character is a detective who has been summoned to the Cabeza Plana, California office of Mr. Linder, a millionaire. Linder fears that his life is in danger... and indeed, as he sits in his office with the player, he is murdered before the player's eyes. The player then must solve the murder.