Back 4 Blood will be always-online at launch
An offline mode for solo play may be added later.

In response to a question about whether Back 4 Blood could be played offline in solo mode with AI team-mates, developers Turtle Rock replied, "We're looking into ways we could offline for the future but you will need an internet connection to play at launch." That's a shame, because both of the Left 4 Dead games offline play and some players were hoping Back 4 Blood would follow suit. It also won't have split-screen play at launch, with Turtle Rock noting that, "We'd love to this in the future but won't be launching with it."
Hopefully both features come in post-launch updates. Turtle Rock did earn some goodwill recently by announcing that DLC will be accessible to all players in a party as long as the leader owns it, as is also the case in games like Vermintide 2. It's a relief to know that DLC won't fragment players.
Back 4 Blood is due to come out on October 12, and it will have a PvP mode that lets a team control the zombies.
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Jody's first computer was a Commodore 64, so he re having to use a code wheel to play Pool of Radiance. A former music journalist who interviewed everyone from Giorgio Moroder to Trent Reznor, Jody also co-hosted Australia's first radio show about videogames, how weird Lost Ark can get. Jody edited PC Gamer Indie from 2017 to 2018, and he eventually lived up to his promise to play every Warhammer videogame.