This is book is a translation from Polish of the original title Niezwyciężony (1964).
The following English translations are known:
| Year | Title | Notes |
|---|---|---|
| 1973 | The Invincible | Translated by Wendayne Ackerman from the 1967 German edition |
| 1973 | The Invincible | Translated by Wendayne Ackerman from the 1967 German edition |
| 2020 | The Invincible | Translated by Bill Johnston |
In addition to its stand-alone volume, this title was published in the follow books. It can be rated independently of any volumes containing it.
