Mysterious Murderers Codes Checklist

Use this checklist when you return to Mysterious Murderers after a patch, a season trailer, or a friend spamming “new code” in chat. Winng3447 and Granturismo Games distribute rewards through Inventory → Enter Code → Redeem in this Roblox title (released 15 April 2026). Every string below is case-sensitive. Murder Mystery 2 codes never work here—confirm you opened the correct experience via Play on Roblox before you start.

Cross-reference reward names on Active Codes if a code fails; developers disable promos without announcement. Expired history lives on Expired Codes.

Before you redeem (30 seconds)

• Log into the Roblox account you play on (not an alt unless you accept one-time-per-account limits).
• Join a public server—private servers occasionally lag Inventory after hotfixes.
• Open Inventory on the left HUD.
• Confirm Enter Code is visible; rejoin if greyed out after a patch.
• Optional: join Granturismo Games for milestone gifts parallel to typed codes—see Group Rewards.

Tier 1 — confirmed active (redeem first)

Check each box after a successful popup. Type exactly as shown.

Done	Code	Expected reward
[ ]	OCEAN	Waves Sword
[ ]	GREEN	Green Heat Sword
[ ]	LAVA	Lava Hammer
[ ]	BLU3CU4LASS	Blue Cutlass (numbers, not letters)
[ ]	KNIFE	Rainbow Knife
[ ]	GUN	Rainbow Pistol
[ ]	SEER	Seer Axe
[ ]	K3Y	Mystery Key
[ ]	SEASON4	2500 Coins
[ ]	BEACH	Rainbow Beach Knife
[ ]	WAVES	Waves Weapon
[ ]	FUTURE	Future Laser

Redeem order tip: Run SEASON4 first if you want shop currency, then weapon codes you lack. Coin grants apply immediately when accepted.

Tier 2 — verify in-game (test yourself)

Community trackers report these strings flipping active/inactive by region and patch day. Mark the date you confirm each one.

Done	Code	Expected reward	Notes
[ ]	FR33C4ROMA	Free Chroma / chroma-related	May overlap group milestone; try after joining Granturismo Games
[ ]	PINK2	Pink-themed cosmetic	Uneven success after recent updates
[ ]	CWAVES	Waves-themed weapon variant	Case-sensitive; verify reward name in Inventory
[ ]	EGUN	Rainbow / chromatic gun	Often pairs with EKNIFE for flex loadouts
[ ]	EKNIFE	Rainbow / chromatic knife	Verify in Inventory after redeem
[ ]	COCEAN	Ocean-themed cosmetic	Community-tracked; confirm on fresh server

If FR33C4ROMA fails but Tier 1 codes work, claim Free Chroma through the group milestone path documented in Milestone Rewards—the official description still references 50,000 group members, and the group now exceeds 557k, so retroactive claims should work for new joiners.

Five-minute session plan

Minute 0–1: Launch game, open Inventory, redeem SEASON4 (coins) if active.

Minute 1–3: Redeem Tier 1 weapon codes you have not claimed on this account. One attempt per code per server; switch servers only after a clear “invalid” message.

Minute 3–4: Test Tier 2 verify codes. Screenshot successes. Skip spam—Roblox may throttle repeated redeem clicks.

Minute 4–5: Equip new knife and gun slots per Inventory Tips, queue one round, confirm cosmetics appear on Murderer or Sheriff spawn.

After redemption

1. Equip items in Inventory—redemption alone does not change in-round appearance until slots are set.
2. Read Weapons and Items if Innocents confuse why knives do not appear at spawn (role-gated).
3. Compare flex value on Chroma Tier List when you unlock chromatic rewards.
4. Bookmark Codes hub and rerun this checklist when Updates announces new seasons.

Common failure fixes

Symptom	Likely cause	Fix
”Invalid code” on BLU3CU4LASS	Typed BLUECUTLASS	Use 3 and 4 as digits
Code works for friend, not you	Already redeemed on this account	One claim per account typical
All codes fail	Wrong Roblox game installed	Open official link on Play on Roblox
Reward missing after success	Inventory not refreshed	Rejoin server, reopen Inventory
FR33C4ROMA fails	Milestone-only path	Join group, check Milestone Rewards page

Reporting changes

If a Tier 1 code stops working for your entire squad on the same patch day, check Expired Codes before sharing panic in Discord. If a Tier 2 verify code suddenly works widely, note the date—you help the wiki keep Active Codes honest.

Related pages

• How to Redeem Codes — menu screenshots and mobile UI notes.
• Tools hub — other workflows and bookmark tips.
• Getting Started — first session if you redeemed before learning roles.
• Mysterious Murderers vs Murder Mystery 2 — stop mixing MM2 strings into this checklist.

Run this list once per major update. Five minutes of organized redemption beats twenty minutes of lobby guesswork—and keeps your loadout ready for Murderer, Sheriff, and Innocent rounds in Granturismo’s 12-player lobbies.