| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1930 |
|
Gladiator | Alfred A. Knopf | Novel | |
| March 1930 |
|
Gladiator | The Book League of America | Novel | |
| 1949 |
|
Gladiator | Avon | Novel | |
| 1951 | Gladiator | Shakespeare House | Novel | ||
| 1956 |
|
Gladiator | Avon | Novel | 3 |
| 1965 |
|
Gladiator | Lancer Books | Novel | 5 |
| 1967 |
|
Gladiator | Lancer Books | Novel | |
| 1974 | Gladiator | Hyperion Press | Novel | 3 | |
| 1974 |
|
Gladiator | Hyperion Press | Novel | |2 |
| 1976 |
|
The Gladiator | Manor Books | Novel | 5 |
| 2004 |
|
Gladiator | Bison Books | Novel | 3 |
| May 2008 |
|
Gladiator, el superhombre | Jaguar Ediciones | Novel | |
| March 2009 |
|
Gladiator | Wildside Press | Novel | |
| March 2009 |
|
Gladiator | Wildside Press | Novel | |
| June 2013 | Gladiator | Project Gutenberg | Novel | ||
| July 2013 |
|
Gladiator | LibriVox | Novel | |
| September 2014 |
|
The Reign of the Super-Man and Other Fantastic Tales | CreateSpace | Anthology | |
| April 2015 |
|
Gladiator | Gateway / Orion | Novel | |
| September 2015 |
|
Gladiator | Dover Publications | Novel | |1 |
| November 2015 |
|
Gladiator | Dover Publications | Novel | |
| April 2018 |
|
Gladiator | DarkCrazy Publications | Novel | |
| March 2021 |
|
Gladiator | Novel | ||
| January 2023 |
|
Gladiator | Spoken Realms | Novel | |
| June 2023 |
|
Gladiator | Culturea | Novel | |
| September 2023 |
|
Gladiator: Storia di un superuomo | Novel | ||
| February 2024 |
|
Gladiator | True Sign Publishing House | Novel | |
| May 2024 |
|
Gladiator | HardPress Publishing | Novel |