About this filter

Mark of the Ninja Remastered is Klei Entertainment's 2D side-scrolling stealth game, and most of its profanity comes from the spoken chatter of patrolling guards reacting as you slip past them, plus a handful of words in the on-screen text. The dialogue and barks are English, and the swearing is occasional but pointed enough that some players would rather not hear it. This free filter is for anyone who wants to keep the game's tense, methodical stealth intact while taking the coarse language out of it — parents sharing the game with younger players, streamers who need a cleaner broadcast, or anyone who simply prefers their guards a little less foul-mouthed. It changes nothing about how the game looks or plays; it only touches the words themselves.

The filter covers two surfaces. In the audio, 183 spoken guard-bark clips have the single profane word silenced — only that word is muted, the rest of the bark plays normally, and each clip keeps its exact original length, so timing and delivery are unchanged. This spans the game's two voice banks. In the on-screen text, the few profane words are replaced with same-length asterisks, so a six-letter word becomes a six-asterisk block, with sentence structure and punctuation left intact. Both the strong-language insults and blasphemy used as an exclamation or curse are treated as profanity and filtered. The work is English only and applies to single-player; everything not on a flagged word is left exactly as the developers shipped it.

Each edit was built and verified against your own copy of the game rather than applied blind. The text change passed a byte-for-byte round-trip check across all 2080 of the game's strings before any word was touched, and the audio edits preserve each bank's exact byte length so the game's own files stay structurally valid, with original files backed up automatically before anything is written. An operator playtested the patched install in-game and confirmed the guard profanity is silenced and the game runs normally, and the published download was then re-installed from scratch and re-confirmed end to end. The story, the voice performances, the music, the art, the stealth gameplay, all non-English text and audio, your saves, and your achievements are untouched — only the flagged words change.