In the Alcatraz Escape Room Roblox walkthroughs I found, M appears to be part of a puzzle code rather than a fixed value , so the exact answer depends on the room/puzzle you’re on. The videos and guide I found show several different codes for different steps, but they do not clearly identify a single universal “M = ?” answer.

What that means

  • If you’re asking about a letter-to-number puzzle , M is often solved from the specific clue in that room, not from a global rule.
  • The Alcatraz map is described as a math-and-logic-heavy escape room, so the value usually comes from the surrounding puzzle context.

Best match from the available walkthroughs

  • I found walkthroughs for the updated Alcatraz map and the original Alcatraz map, but none of the accessible snippets directly state “M equals ___” by itself.
  • One walkthrough shows a later code sequence of 7495 , but that is tied to a different puzzle, not a standalone M clue.

To narrow it down

  • Send the exact puzzle text, screenshot, or the full line where M appears.
  • If you want, I can help decode it step by step from the clue you’re seeing.