Le prix Sidewise pour l'Histoire Alternative (Sidewise Awards for Alternate History) est né en 1995. Il récompense un roman et une nouvelle du domaine de l'uchronie. Il est décerné par un jury lors des conventions mondiales de science-fiction. En raison de la pandémie de Covid-19, les prix 2019 et 2020 ne seront annoncés qu'à l'été 2021.
2023 | (Apollo in Retrograde) (Rosemary Claire Smith) | |
2022 | (A Dream of Electric Mothers) (Wole Talabi) | |
(A Sky and a Heaven) (Eric Choi) ex-aequos | ||
2021 | (Gunpowder Treason) (Alan Smale) | |
2020 | (Moonshot) (Matthew Kresal) | |
2019 | (Christmas Truce) (Harry Turtledove) | |
2018 | (Codex Valtierra) (Oscar Ramirez et Emmanuel Valtierra) | |
2017 | (Zigeuner) (Harry Turtledove) | |
2016 | (What If the Jewish State Had Been Established in East Africa) (Adam Rovner) | |
(Treasure Fleet) (Daniel Bensen) ex-aequos | ||
2015 | (It Doesn't Matter Anymore) (Bill Crider) | |
2014 | (The Long Haul:From the Annals of Transportation,The Pacific Monthly, May 2009) (Ken Liu) | |
2013 | (The Weight of the Sunrise) (Vylar Kaftan) | |
2012 | (Something Real) (Rick Wilber) | |
2011 | (Paradise Is a Walled Garden) (Lisa Goldstein) | |
2010 | (A Clash of Eagles) (Alan Smale) | |
2009 | (The Fixation) (Alastair Reynolds) | |
2008 | (Sacrifice) (Mary Rosenblum) | |
2007 | (Recovering Apollo 8) (Kristine Kathryn Rusch) | |
(Quaestiones Super Caelo et Mundo) (Michael Flynn) ex-aequos | ||
2006 | Contrefactuel (Counterfactual) (Gardner R. Dozois) | |
2005 | (Pericles the Tyrant) (Lois Tilton) | |
2004 | (Ministry of Space) (Warren Ellis, Chris Weston et Laura Dupuy Martin) | |
2003 | (O One) (Chris Roberson) | |
2002 | (Empire) (William Sanders) | |
2001 | Le front pour l'humanité (The human front) (Ken Macleod) | |
2000 | Soixante-douze lettres (Seventy-two letters) (Ted Chiang) | |
1999 | Le huitième registre (The eighth register) (Alain Bergeron) | |
1998 | (The summer isles) (Ian R. Macleod) | |
1997 | (The undiscovered) (William Sanders) | |
1996 | Les diables étrangers (Foreign devils) (Walter Jon Williams) | |
1995 | (Brigantia's Angels) (Stephen Baxter) |