BOMBook of Monsters game icon
Updated Oct 8, 2026

Book of Monsters Codes (October 2026)

Checked today 8 players 4 active codes Survivalby Cosmic Workshop

There are currently 4 working Book of Monsters codes. Redeem them for free Coins. Every code below was re-checked today; codes that stop working move to the Expired tab the same day.

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All working Book of Monsters codes

Free reward
Added Aug 10, 2026
250 Coins, 100 Dux
Added Aug 10, 2026
1,500 Coins, 100 Dux
Added Aug 10, 2026
Free reward
Added Oct 31, 2025

How to redeem Book of Monsters codes

  1. 1
    Launch Book of Monsters
    Open Roblox and join Book of Monsters. The codes box only works once you have fully loaded into the game.
  2. 2
    Find the codes menu
    Look for a Codes, Redeem or gift button. Most games put it on the side of the screen, inside the Settings menu or at the bottom of the Shop.
  3. 3
    Paste a code and claim
    Tap Copy on any active code above, paste it into the box and press Redeem. Codes are case-sensitive, so copying beats typing.
Book of Monsters official Roblox thumbnail
Book of Monsters on Roblox. Image: Cosmic Workshop

About Book of Monsters

Developer: Cosmic Workshop · Genre: Survival · Visits: 101.9M · Favorites: 627K · Released: 2016 · Last game update: Oct 7, 2026

💥 Become a giant Monster and DESTROY EVERYTHING... ✨ or survive and stop the Monsters before they do! 👹 MONSTER: Smash the world, and unleash devastating attacks! ⚡ HUMAN: Avoid the chaos, and hit the self-destruct buttons on the monsters! 🎨 Unlock dozens of Monster costumes and bring your favorite along as a pet! --- ⚠️Old game but currently attempting to revive!!

Description from the official Book of Monsters page on Roblox.

Official links

Play on Roblox ↗Cosmic Workshop on Roblox ↗Discord ↗X (Twitter) ↗

Book of Monsters codes FAQ

What are the working Book of Monsters codes in October 2026?

There are 4 active Book of Monsters codes right now: WelcomeBack, KitchenFan, 50kKitchenFans, classichalloween.

How do you redeem codes in Book of Monsters?

Join Book of Monsters on Roblox, then look for a Codes, Redeem or gift button. Most games put it on the side of the screen, inside the Settings menu or at the bottom of the Shop. Paste a code exactly as written and press Redeem.

Why is my Book of Monsters code not working?

Codes are case-sensitive and most can be redeemed only once per account. Some need a minimum level, and older servers may not accept brand-new codes, so rejoin a fresh server. If a code still fails it has probably expired.

When do new Book of Monsters codes come out?

Cosmic Workshop usually releases new codes with updates, events and like or visit milestones. New codes are added here within a day of release.