The Windscale Incident by Paul KearneyThe Martian Contingency by Mary Robinette KowalOther Covenants by Andrea D. LobelHot Moon by Alan SmaleThe Peacekeeper by B.L. Blanchard
Alternate History in 2022
9 books — 4 voters
The Kingdoms by Natasha PulleyELADATL by Sesshu FosterPurgatory's Shore by Taylor AndersonA Master of Djinn by P. Djèlí ClarkThe Great Destroyers by Caroline Tung Richmond
Alternate History in 2021
25 books — 9 voters

Agency by William GibsonColossal Ambitions by Adrian BrettleCyber Shogun Revolution by Peter TieryasThe Windscale Incident by Paul KearneyThe Relentless Moon by Mary Robinette Kowal
Alternate History in 2020
17 books — 4 voters
Famous Men Who Never Lived by K. ChessMachines like Me by Ian McEwanTheater of Spies by S.M. StirlingA Line of Forgotten Blood by Malcolm MackayThe Fourth Reich by Gavriel D. Rosenfeld
Alternate History in 2019
35 books — 20 voters

Through Darkest Europe by Harry TurtledoveTexoma by Charlaine HarrisSmoke and Iron by Rachel CaineTelling It Like It Wasn't by Catherine GallagherPurple Hearts by Michael  Grant
Alternate History in 2018
36 books — 11 voters
The Berlin Project by Gregory BenfordSilver Stars by Michael  GrantEagle and Empire by Alan SmaleOne Thousand Monsters by Kim NewmanAsh and Quill by Rachel Caine
Alternate History in 2017
49 books — 14 voters

Once Upon a Clockwork Tale by Ella Grey Kat French Robin ...
Best Unknown Steampunk
242 books — 333 voters