How to Redeem Codes in Cookie Run: Crumble (Step by Step)

Wondering how to redeem codes in Cookie Run: Crumble? This page walks through the redemption process itself — for the live list of working codes, head to our codes page, which is updated as new ones drop.

Update, July 31: the official page is live. Devsisters has published the Crumble Coupon Registration page on coupon.devplay.com — the same pattern Kingdom uses, exactly as predicted here. The steps below are the confirmed flow, taken from the official page itself.

The confirmed redemption flow

Crumble redeems codes on a web coupon page, not inside the game:

1. Open the official coupon page: coupon.devplay.com/coupon/cc/en.
2. Enter your DevPlay Account. The page’s own “How to find your DevPlay account” section shows exactly where to look it up.
3. Type the code and submit. Enter codes exactly as published, and note the official rule: “Each Coupon Code can be used only once per account.”
4. Restart the game. The official page is explicit: “To receive the reward, restart the game after entering the Coupon Code.” Then collect it from your in-game Mailbox. Skipping the restart and assuming the code was dead is the single most common mistake.

Secret codes from the Treasure Map Event

One code mechanic was confirmed before launch: the pre-registration Treasure Map Event on the official site unlocks secret codes as you solve clues and complete mission steps. If you’re pre-registering, work through the map — reward amounts haven’t been published, but the codes themselves are official. The full pre-registration reward breakdown is in our pre-registration rewards roundup.

Tips for not missing rewards

• Redeem early. Codes in Devsisters games are usually time-limited, and launch-window codes tend to expire fastest.
• Only trust official sources. We only list codes we can verify — a site listing codes without a source may be guessing or fabricating.
• Mind the mailbox deadline. Pre-registration rewards delivered by mail must be claimed by August 29, 2026, 11:59 PM GMT+9, so don’t let deliveries sit unclaimed.
• Spend code Crystals with a plan. Free currency stretches further if you check the reroll guide before your first summons.

The short version

Grab your DevPlay account email from settings, enter it with the code on the official coupon page, and collect the reward from your Mailbox. We update this guide and the codes list as new codes appear. New to the game entirely? Start with the beginner guide.