Extremophile is a risky and innovative biopunk thriller set in a dystopic future written by Ian Green (The Rotstorm Trilogy), and published by Ad Astra. In a climate-collapse London, Charlie and Parker are punks and biohackers; when they are offered a job by a group of Greens (activists that still think there is hope to save and revert the situation), Charlie was sure they should reject, but Parker convinces him there's still something to do for the world, throwing them in an incredible mission that will make them face corporations, amoral biohackers and criminals. 

Kill the Ghost. Steal the Flower. Save the World.

With this premise, Green weaves a frenetic and intense story that screams punk all the time, from the own characters and their mission, to even the writing style. A job that is bigger than Charlie and Parker, and that will put them in the middle of the bullseye, while making them to rethink about their own convictions; a contrast between the nihilism bordering the Black associated with Charlie with the hope and idealism that still exists inside Parker.
The main characters are well fleshed, offering a really intimate look into their ideas and opinions, which also are affected by their contact with this group of Greens that hire them. We can appreciate how there's still a shade of hope inside Charlie, and how even if she doesn't believe that the solution for the world is hidden in a flower; the secondary characters play key roles in the plot, and we even get to follow the villain, an amoral biohacker that seemed a bit inspired by Mengele's actions.

Not only we have an excellent cast of characters, but a quite hooking plot that ties all together while being a thought provoking; not only putting the spotlight onto themes such as bio-augmenting and the price paid as a consequence of corporate greed, but also into the importance of community and the balance between optimism and nihilism. 

The writing style is quite particular, reinforcing that punk essence of this book; from the use of multiple POVs to the absence of quotation marks, giving you a more intimate following of the characters. Descriptions are evocative, almost poetical. 
The worldbuilding is effortlessly integrated into the narration, not being too extensive and focusing more on what we can learn through the characters' lives and actions; climate-collapse is a reality, and this Britain is mostly a hyper-capitalist dystopia in the control of corporations. We also dive into punk and music, and I loved how the Extremophile is full of small nerdy (and accurate) genetic details, making the biohacking to feel more authentic.

Extremophile is an excellent novel; from the writing style to the characters, I found every aspect of this book to complement each other to deliver an incredible and hopeful story. Definitely one of the candidates to be my book of the year, as Ian Green has absolutely nailed it!