Murder Mystery 2 Codes (June 2026)

Murder Mystery 2 is a Roblox social deduction game where players are assigned one of three roles — Innocent, Sheriff, or Murderer — and must outwit each other to survive. Developer Nikilis periodically releases codes that hand out free knives, pets, and cosmetics without any in-game grind required.

Working MM2 Codes

We checked for new codes and there are no active MM2 codes right now. Codes in this game are released sparingly — check back here when Nikilis drops new ones, as this list is updated as soon as they go live.

How to Redeem MM2 Codes

Redemption happens entirely inside Murder Mystery 2 — no external page or launcher needed. The code box is tucked inside the Inventory panel, accessible from the lobby at any time.

Open Murder Mystery 2 in Roblox and wait until you are fully loaded into the main lobby.

Click the Inventory button on the left side of the screen. It displays as a treasure chest icon.

Locate the “Enter Code” text box in the bottom right corner of the Inventory window. Type or paste your code exactly as it appears — MM2 codes are case-sensitive, so even one wrong character will cause the redemption to fail.

A screenshot of the Murder Mystery 2 codes redeem page with the redemption box circled — The Enter Code box sits in the bottom right corner of the Inventory panel.

Click Redeem. A confirmation pop-up appears showing what you received if the code is valid. Each code is limited to one redemption per account.

All Expired MM2 Codes

None of the codes below are redeemable. Every one of them rewarded a knife or pet when active, and several of those items — including the Prism Knife and the TNL Knife — have since become valued pieces in the MM2 trading economy.

COMB4T2 — Combat II Knife
PR1SM — Prism Knife
AL3X — Alex Knife
C0RL — Corl Knife
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
FL4MNG0 — Flamingo Knife
NatureUpdate — 500 Gold

Where to Find New Codes When They Drop

Nikilis announces codes directly on the official X account (@nikilisrbx) and the Murder Mystery 2 Discord. These are the only confirmed first-party sources — any third-party code generator claiming to produce working codes is not legitimate.

MM2 codes are rare by design. The game operates a live trading economy where knife and pet values are driven by scarcity. Seasonal events — Halloween and Christmas especially — are historically when limited cosmetics become available through in-game event currency, and those items often appreciate in trade value once the event window closes. Keeping an eye on those periods is the most reliable way to build your inventory when codes are not active.