According to the search results, the PlayStation Plus free games for October 2023 are The Callisto Protocol, Weird West, and Farming Simulator 22. These games were available to PlayStation Plus members starting from October 3, 2023, until November 6, 2023. The Callisto Protocol is a survival-horror game and a spiritual successor to Dead Space, where players investigate an outbreak in an abandoned moon prison. Weird West is a supernatural western RPG. Farming Simulator 22 is a farming game where players use a variety of equipment and machinery to harvest and sell crops, raise livestock, and expand their farms. Its worth noting that the search results also show a different set of games for the PlayStation Plus Game Catalog for October, which includes Gotham Knights, Disco Elysium: The Final Cut, The Dark Pictures Anthology: House of Ashes, Alien: Isolation, Dead Island Definitive Edition, Outlast 2, and more.