Grab every active knife code you can redeem in Murder Mystery 2 right now, plus the exact steps to claim them.
Murder Mystery 2 is a long-running Roblox whodunit where you play as an Innocent, Sheriff, or Murderer each round, and codes drop free cosmetic knives you can equip and trade with other players.
Working Murder Mystery 2 Codes
These codes are live right now and each one rewards a unique knife skin for your inventory.
F1RSTC0D3
Uncommon Knife
B4CK2SK00L
Skool Knife
N3XTL3V3L
TNL Knife
FL4M
Flamingo Knife
C0RL
Corl Knife
How to redeem codes in Murder Mystery 2
Redemption happens inside the Inventory menu, not through the Roblox site. Load into Murder Mystery 2 first, then follow the steps below.
Step 1: Launch Murder Mystery 2 in Roblox and wait for the main lobby to finish loading. You need to be fully in the game, not on a loading screen, before the menu will accept a code.
Step 2: Click the Inventory button on the left side of your screen. This opens the item drawer that also handles code entry.
Step 3: Look for the small Twitter (X) bird icon at the top of the Inventory panel and click it to open the code box.
Step 4: Type or paste a code from the list above exactly as written, keeping the same capitalization and digits, then press Redeem. A valid code adds the matching knife straight to your inventory, and you can confirm it by scrolling to the Knives tab.
Expired Murder Mystery 2 codes
These codes have already been retired and no longer grant rewards, but they’re worth knowing so you don’t waste time typing them in.
D3NIS
Denis Knife
SK3TCH
Sketchy Knife
SUB0
Sub Knife
INF3CT3D
Infected Knife
G003Y
Goo Knife
R3PT1L3
Reptile Knife
SK00L
Skool Knife
PATR1CK
Patrick Knife
2015
2015 Knife
G1FT3D
Gifted Knife
TH3N3XTL3V3L
TNL Knife
N30N
Neon Knife
HW2017
Pumpkin Pet
NatureUpdate
500 Gold
COMB4T2
Combat II Knife
PR1SM
Prism Knife
AL3X
Alex Knife
How to get more Murder Mystery 2 codes
New codes for Murder Mystery 2 come from the game’s developer, Nikilis. The most reliable places to spot fresh drops are the official Nikilis X (Twitter) account and the in-game Twitter icon inside the Inventory panel, which is where Nikilis routinely ties promotional knives to a code. Codes usually appear alongside big updates, collabs with popular Roblox YouTubers, or seasonal events, so activity tends to spike around holidays rather than every week.
If you want to stay ahead of drops, turn on post notifications for Nikilis on X and check back here whenever a major MM2 update lands. Older codes are frequently retired without warning, so it’s worth redeeming any active code the day you see it.
Are Murder Mystery 2 codes free?
Yes. Every code above is free to redeem and requires no Robux. You only need a Roblox account and access to the game.
Why didn’t my code work?
The two usual causes are a typo or expiry. Codes are case-sensitive and mix zeros with the letter O, so copy them exactly as shown. If the entry is correct and still fails, the code has most likely been retired since it was first released, and it will need to move to the expired list.
Bookmark this page and swing back after each MM2 update — we refresh the working and expired lists whenever Nikilis rotates codes so you always know which knives are still up for grabs.
