The Callisto Protocol's upcoming expansion finally ends the story

A monster bares its teeth and growls in The Callisto Protocol
(Image credit: Striking Distance Studios)

The Callisto Protocol’s one and only story expansion is out next week and is appropriately titled ‘Final Transmission' - as it'll wrap up the game's story.

In a teaser trailer shared by the game's official Twitter account, Final Transmission is being set up as the "heart-pounding final chapter" to the game and its story. And while it declares the expansions will "dig deeper into the horrifying secrets of The Callisto Protocol" that is pretty much all the information we have right now, but it looks rife with thick, spooky atmosphere again. One of the game's best parts was the sense of place that Balck Iron Prison had so any continuation of that means we're intrigued - particularly if the expansion will neatly round off the main game's storyline as indicated. 

The expansion for Striking Distance Studios first game - headed up by Dead Space's Glenn Schofield, remember - will launch on June 29 on PS5, PS4, Xbox Series X|S, Xbox One, and PC - though PlayStation owners can enjoy the expansions 48 hours earlier from June 27.

While accepted as one of the best-looking, graphically impressive games of last year, The Callisto Protocol did unfortunately fail to win over as many fans as the publisher had hoped. It was deemed a bit of a financial failure and flop, and is regularly seen on sale now, dropping below half price regularly - just mere months after it's release last November.

Hopefully, the Final Transmission expansion will not only wrap up the story of the game neatly, excitingly, and successfully, but will also feature some interesting features in its own right - and maybe some enhancements too - to help the game go out with a bang.

But until it releases, all we do know is that the game’s DLC, Final Transmission, really is set to be its final transmission...

The Callisto Protocol might not be one of the very best horror games, but was certainly a decent stab at being a Dead Space-alike scary, survival game.

Rob Dwiar
Managing Editor, TechRadar Gaming

Rob is the Managing Editor of TechRadar Gaming, a video games journalist, critic, editor, and writer, and has years of experience gained from multiple publications. Prior to being TechRadar Gaming's Managing Editor, he was TRG's Deputy Editor, and a longstanding member of GamesRadar+, being the Commissioning Editor for Hardware there for years, while also squeezing in a short stint as Gaming Editor at WePC just before joining TechRadar Gaming. He is also a freelance writer on tech, gaming hardware, video games, gardens, and landscapes and is crowdfunding a book on video game landscapes that you can back and pre-order now too.