Book of Monsters Codes

Redeem the codes below for free in-game rewards in Book of Monsters. Codes we haven't confirmed in the last 30 days are marked Unverified, and your votes tell us which to re-check first.

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0 codes

Last updated

May 19, 2026

Active Book of Monsters Codes 14

Code	Description	Status
ClassicHalloween	Free Reward	Unverified
StillTheHolidays	100 Candy Canes	Unverified
GhostsSayBOO	100 Candy	Unverified
HammersAdded	750 Coins	Unverified
75Million	150 Candy, 750 Coins, And 75 Dux	Unverified
BusyHalloween	100 Candy And 500 XP	Unverified
Blocks	Free Reward	Unverified
SacredHills	Free Reward	Unverified
MerryMonsters	Free Reward	Unverified
90MILLIONVISITS	Free Reward	Unverified
SPOOKYSEASON	Coins And Event Candy	Unverified
95klikes	Coins And Dux	Unverified
BOOHOO	50 Candy And 50 Dux	Unverified
InsquidiousGame	Insquid Game Costume	Unverified

How to redeem codes

To redeem codes in Book of Monsters, click the Reward Trophy button on the right-hand side of the screen. Enter your code in the text box and press Enter to claim your reward. The developer also lists some active codes directly in the game description, so it is worth checking that when you first log in. Codes are case-sensitive.

Codes in Book of Monsters reward a mix of currencies depending on the type: Coins are the most common reward from milestone and general codes, while Candy is given during Halloween events and Candy Canes appear for Christmas codes. Dux and XP also appear in combined packages - for example, visit milestone codes like 75Million rewarded Candy, Coins, and Dux together in a single redemption. Getting seasonal currency codes is especially worth it because Candy and Candy Cane economy items are only accessible through event periods and codes.

New codes release around seasonal events and visit milestones. Halloween in October and Christmas in December are the most reliable windows for new code drops. The developer @B_rcode on Twitter/X is the primary announcement channel. The Book of Monsters Discord server and the Cosmic Workshop Roblox group wall also post codes and changelogs. One code, WormMonsterWhen, was hidden inside the worm in the game lobby rather than announced - it is worth exploring the lobby environment for future hidden codes.

Book of Monsters Codes FAQ

Everything you need to know about Book of Monsters codes - from redemption to why they sometimes don't work.

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How do I redeem codes in Book of Monsters?

Click the Reward Trophy button on the right-hand side of the screen. Enter your code in the text box and press Enter to claim your reward. Codes are case-sensitive. The developer also sometimes lists active codes directly in the game description.

Why isn't my Book of Monsters code working?

Double-check your spelling and capitalization - codes are case-sensitive. If the code is entered correctly and still fails, it has likely expired. Seasonal codes for Halloween and Christmas are only active during or shortly after their respective events.

What do Book of Monsters codes give you?

Codes reward Coins, Dux, Candy, Candy Canes, and XP - often in combined packages. Visit milestone codes tend to give combined rewards like Candy, Coins, and Dux together. Seasonal codes give the matching event currency - Halloween codes give Candy, Christmas codes give Candy Canes.

How often do new Book of Monsters codes release?

New codes release around seasonal events - Halloween in October and Christmas in December are the most reliable windows. Visit milestones also trigger new codes. Follow @B_rcode on Twitter/X for the fastest announcements.

Where do I find new Book of Monsters codes?

The developer @B_rcode on Twitter/X is the primary source. Codes are also posted in the Book of Monsters Discord server and on the Cosmic Workshop Roblox group wall. The developer sometimes lists active codes directly in the game description, and at least one code has been hidden inside the lobby environment.