Roblox Murder Mystery 4 Codes (October 2021)

Our Roblox Murder Mystery 4 Codes has the most up-to-date list of working OP codes that you can redeem for a bunch of free knives, weapons, guns, and some free coins. These are all cosmetics, so they won't help you win, but they will help you look good in MM4!

All Murder Mystery 4 Codes List

We'll keep you updated with additional codes once they are released. You should make sure to redeem these as soon as possible because you'll never know when they could expire! All of these codes have been tested on the date that this post was released. If you find one that is expired, please let us know the exact code in the comments below so we can remove it!

Make sure to enter the code exactly as it is listed or it might not work correctly!

Murder Mystery 4 Codes (Working)

Here's a look at a list of all the currently available codes:

  • 2021 - Redeem code for an American Set (NEW)
  • R4INBOW - Redeem code for a Rainbow Set (NEW)

Murder Mystery 4 Codes (Expired)

  • 50000 - Redeem code for 50,000 Coins
  • BANHAMMERZ - Redeem code for Ban Hammer weapon
  • COINS4DAYS - Redeem code for free Coins
  • N3WUPDAT3 - Redeem code for a free reward
  • FREEKNIFES - Redeem code for Icewing & Harrow Blade Knives
  • FUN - Redeem code for Peppa Pig Knife
  • L0BBY - Redeem code for Rainbow Blade of Underworld
  • G3MMA - Redeem code for Gamma set of Knives & Weapons
  • PIGGY - Redeem code for Flame Thrower Revolver
  • HAPPY4THOFJULY! - Redeem code for American Blade & American Revolvers
  • CHR0MAT1C - Redeem code for Chromatic set of Knives & Weapons

How-to Redeem Codes in Murder Mystery 4

If you want to redeem codes in Murder Mystery 4, just look for the present icon on the side of the screen and enter into the code redemption area. Copy one of the codes from our list and paste it into the box. Hit the enter key and you will receive your free reward!

Game Description & Recent Update

Start your adventure in the ultimate Murder Mystery game today! Deceive others as a murderer, save the citizens as the sheriff, or become the hero as a civilian!

If you're looking for codes for other games, we have a ton of them in our Roblox Game Codes post! You can also get a bunch of free stuff via our Roblox Promo Codes page.

Get Roblox codes and news as soon as we add it by following our PGG Roblox Twitter account!

About the Author

Rob is a writer for PGG and a long time lover of games that started with a GameBoy Color and a PS1. You can follow him on Twitter @robdutowrites to hear his latest gaming and movie thoughts. Somewhere, he's probably eating popcorn.
Find Robsperduto On: Twitter

More Roblox Game Codes

Leave a Comment

Comments are on moderation and will be approved in a timely manner. Please read the following rules before commenting:

  • All comments must be on topic and add something of substance to the post
  • No swearing or inappropriate words
  • No asking or begging for anything free
  • Do not attempt to start a poll in the comments
  • Comments in all CAPS will be removed
  • We reserve the right to remove a comment for any reason
  • Do not impersonate a staff member or influencer

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.


  1. r4inbow is expired

    1. you have to type R4INBOW not r4ainbow

    2. This code has not expired

  2. I’m sorry but why does it say “Not a code” i type it as it is from here. Thanks have a great day! πŸ™‚

    1. Those codes have expired. I’ve updated the page with new codes. πŸ™‚

  3. None of these work, for those of you here for working codes there are only two. 2021 and R4INBOW.

    1. Updated, thanks for the heads up!

  4. .uhhhhhh i dob not THINK they work

    1. These codes still work

  5. none of the codes seem to work

    1. All of these still work. The game hasn’t released new codes in a while, though.

  6. Why is Murder Mystery X Locked πŸ™

    1. I don’t know why>sorry.

  7. is this real

    1. I Love this website my friends have been telling me how I get them so I tell them to go here πŸ˜€

    2. Why wouldn’t it be?