Techland has issued a humble apology after PC gamers were sold a version of zombie survival game Dead Island that included a skill called “Feminist Whore”.

The name for the skill was in an earlier build of Dead Island, and was never intended for the final version. This development build was accidentally released to Steam and sold to gamers.

“It has come to our attention that one of Dead Island's leftover debug files contains a highly inappropriate internal script name of one of the character skills. This has been inexcusably overlooked and released with the game,” said Techland in its statement.

“The person responsible for this unfortunate situation will face professional consequences for violating the professional standards and beliefs Techland stands for.”

“The line in question was something a programmer considered a private joke,” continued Techland. “The skill naturally has a completely different in-game name and the script reference was also changed. What is left is a part of an obscure debug function. This is merely an explanation but by no means an excuse.”

“In the end that code was made a part of the product and signed with our company name.”

“We deeply regret that fact and we apologise to all our customers or anyone who might have been offended by that inappropriate expression.”

The offending line is being removed by a patch.