As G.L. Powell
- 2028 – Afloat – (Novel, Titan Books)
- 2027 – Unleashed – (Novel, Titan Books)
As Gareth L. Powell
- 2027 – Downdraft – (Novella, Stars and Sabers)
- 2026 – Jitterbug – (Novel, Titan Books)
- 2025 – Who Will You Save? – (Collection, Titan Books)
- 2025 – Doctor Who: The Well – (Novelisation, BBC Books)
- 2025 – Future’s Edge – (Novel, Titan Books)
- 2023 – Descendant Machine – (Novel, Titan Books)
- 2022 – Stars and Bones – (Novel, Titan Books)
- 2022 – Six Lights off Green Scar – (Chapbook, BOTH Publishing)
- 2022 – About Writing – (Non-fiction, Gollancz)
- 2021 – Light Chaser (co-written with Peter F. Hamilton) – (Novella, Tor)
- 2020 – Light of Impossible Stars – (Novel, Titan Books)
- 2019 – Fleet of Knives – (Novel, Titan Books)
- 2019 – Ragged Alice – (Novella, Tor)
- 2018 – Embers of War – (Novel, Titan Books)
- 2017 – Ack-Ack Macaque: The Complete Trilogy – (Omnibus, Solaris Books)
- 2017 – Entropic Angel – (Collection, NewCon Press)
- 2015 – Macaque Attack – (Novel, Solaris Books)
- 2014 – Hive Monkey – (Novel, Solaris Books)
- 2013 – Ack-Ack Macaque – (Novel, Solaris Books)
- 2011 – The Recollection – (Novel, Solaris Books)
- 2010 – Silversands – (Novel, Pendragon Press)
- 2008 – The Last Reef – (Collection, Elastic Press)
As Editor:
- 2026 – Of Dread, Decay, and Doom (co-edited with Jendia Gammon & Scarlett Algee) – (anthology, Stars and Sabers Publishing)
- 2025 – Of Enchantment, Enigma, and the Infinite (co-edited with Jendia Gammon & Scarlett Algee) – (anthology, Stars and Sabers Publishing)
- 2025 – Of Shadows, Stars, and Sabers (co-edited with Jendia Gammon & Scarlett Algee) – (anthology, Stars and Sabers Publishing)
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