Murder Mystery 2 Codes (December 2025): All Active & Expired MM2 Codes

If you're checking in for Murder Mystery 2 codes this December, here's the quick truth up front: 
There are currently no active codes in MM2 right now. 
The game hasn't released a new working code in a long time, and the older ones have all expired. Many players still look for codes hoping for free knives or cosmetics, so keeping track of updates can help you avoid missing anything if the developer drops a surprise code in the future.

Below is everything you need to know, including all expired codes to help you double-check what's no longer redeemable.

Active Murder Mystery 2 Codes (December 2025)

As of this month:

There are zero working codes. 
MM2 simply doesn't have any currently redeemable codes, so don't waste time testing random “leaks” or fake codes online.

Still, it's worth checking the game's official updates from time to time—MM2 sometimes adds small surprises during holiday events.

You can get a little extra help in MM2 when you buy mm2 items from U4GM, especially if you want cool knives or pets while waiting for new codes to drop. And if you ever need more game funds, you can also buy robux cheap at U4GM to make your upgrades easier without spending too much. Everything is simple, safe, and pretty quick, so it fits well for players who just want to enjoy the game without grinding all day.

Expired Murder Mystery 2 Codes

These codes once worked but cannot be redeemed anymore. They're listed here mainly so you don't get tricked by old YouTube videos or outdated guides.

• 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

Some of these were part of older creator partnerships, while others came from seasonal events. They probably won't return—but MM2 has brought back certain theme items during holiday updates before, so never say never.

Will MM2 Release New Codes Soon?

It's hard to predict. The developer (Nikilis) has slowed down code releases over the years, but MM2 is still one of Roblox's most-played games, especially during holidays. 
If a new code ever appears, it almost always happens during:

• Christmas updates
• Halloween events
• Big anniversary patches
• Creator partnerships

So December could bring something—but nothing is confirmed yet.

If Codes Don't Work, How Else Can I Get Free Stuff?

Even without codes, you can still get free or cheap items by simply:

• Opening free daily gifts in seasonal events
• Grinding coins and exchanging them for crates
• Trading with other players
• Joining public giveaways in MM2 Discord communities
• Watching for limited event drops (Halloween 2025 & Christmas 2025 might have them)

And honestly, MM2's events are usually the best way to earn cool weapons without spending anything.

Quick Tips From a Player

A small personal tip: if you're hunting for value, save your coins for crates with stable trade value instead of random ones. Some crates drop items players really want, and that makes trading easier when events come back around.

Also—don't stress too much about codes. They're rare, and real progression in MM2 usually comes from trading and crate openings anyway.

Summary

• No active codes exist for December 2025.
• Plenty of past codes are expired, so ignore any guide claiming they still work.
• New codes might return during a holiday event, but nothing is confirmed.
• You can still earn free items through events, crates, and trading.