The DLC picks up immediately after the end of the base game, with protagonist Jacob Lee fighting through Black Iron Prison to retrieve some data for Mahler, which could save them both. Along the way, he’ll fight new enemies, including Security Robots infected by the Biophage and two-headed monstrosities. There’s also a new boss who can alternate between melee and ranged attacks and has a unique ability.

To help turn the tide, players can utilize the new Kinetic Hammer. It’s more powerful than the Stun Baton, and charging the heavy melee attack deals area-of-effect damage.

The Callisto Protocol is available for Xbox One, Xbox Series X/S, PS4, PS5 and PC. Check out our review for the base game here.

The studio has posted a 21-second teaser for the Final Transmission DLC which, while not showing us much in the way of gameplay, does give us a brief glimpse at what we can expect from the DLC in terms of story. Check it out below.

Since its release back in December 2022, The Callisto Protocol has seen quite a few updates released for it over time, including the Riot Mode DLC back in May, the Contagion Mode DLC back in March, and a free update back in April that allowed players to skip cutscenes.

The Callisto Protocol is available on PC, PS4, PS5, Xbox One, and Xbox Series X/S. For more details about the title, check out our review, as well as our thoughts on what went wrong with the game.

Prepare for Final Transmission, the heart-pounding final chapter of The Callisto Protocol.

Play 48 hours early on June 27, exclusively on PlayStation, followed by a wider release on June 29 for all other platforms. pic.twitter.com/m6aBxqMGto

— The Callisto Protocol (@CallistoTheGame) June 16, 2023