Brainrot Tower Defense Codes (September 2025)

In this guide, we'll show you the latest codes for Robox's Brainrot Tower Defense and explain how you can redeem them.

Roblox Brainrot Tower Defense
© Shock Wave Studio

If you’ve been playing Brainrot Tower Defense on Roblox, then you already know it’s no walk in the park. The game throws wave after wave of enemies your way in every Act, and it’s up to you to set up the right brainrot defenses, upgrade your units, and hold the line for as long as possible.

Success comes down to smart strategy and, of course, a little bit of luck — but codes can give you that extra boost to make things somewhat easier. By redeeming them, you can grab yourself freebies like Gems and other special rewards that can help you strengthen your units and unlock other cool items.

New Codes for Brainrot Tower Defense

New Codes for Brainrot Tower Defense
© Shock Wave Studio

Here are the latest codes for Brainrot Tower Defense:

  • act4 – 300 Gems (new!)
  • bbtd – 300 Gems

The latest code was released after the launch of the Act 4 update on September 17.

Related: Steal A Brainrot Codes

Expired Brainrot Tower Defense Codes

Codes will eventually become inactive. So, to help you figure out which ones you can no longer use, check the list of expired codes below:

  • combine
  • chellenge
  • medussi
  • hotspot
  • dindin

How to Redeem Codes in Brainrot Tower Defense

Codes Menu Brainrot Tower Defense
© Shock Wave Studio

Here's how you can redeem your codes:

  1. First, launch Brainrot Tower Defense through the Roblox launcher.
  2. Press the Gift box icon in the top-right corner of the screen. This will open the 'Codes' menu.
  3. Type a working code into the text box.
  4. Finally, press the 'Redeem' button to claim the code.

You should see a message stating the items you've received from the code. If the code is expired or invalid, then you'll see a message stating so.

Where to Find More Codes for Brainrot Tower Defense

The best way to find the latest codes for Brainrot Tower Defense is by checking the developer's Roblox community page. You can also find the active codes posted in the game's 'About' section on Roblox and in the in-game update logs. As always, you can bookmark this page, as we update it when a new code is dropped.

You can typically expect new codes to be released whenever a major update is launched.

How to Get Rewards in Brainrot Tower Defense

Act Rewards Brainrot Tower Defense
© Shock Wave Studio

The easiest way to get rewards is by progressing through the different Stages and Acts. This will reward you with items such as Gems, Coins, Carrots, and Season Pass EXP.

There is another gameplay-based way of obtaining items in Brainrot Tower Defense, and that's by completing Quests. There are Daily, Weekly, and Main Quests, which you can accomplish. These Quests vary from clearing a number of waves, summoning a certain number of units, and playing for various minutes. You can find all the Quests listed in the 'Task' menu. They can reward you with Season Pass EXP, Gems, Coins, and Chests.

You can also claim your free Daily Chest and the Daily Reward every 24 hours. The Daily Chest can be claimed from the 'Shop' menu, while the Daily Reward can be claimed from the dedicated in-game menu.

Daily Chest Brainrot Tower Defense
© Shock Wave Studio

There are also offline rewards that can gift you items, such as Gems and Coins. The longer you are offline, the more items you'll receive. You can boost the value of these items by 3x if you spend Robux.

Another good way to earn Gems is by inviting friends to play Brainrot Tower Defense. A successful invite can earn you 500 Gems, 3 invites get you 1,000 Gems, and 5 invites get you 2,000 Gems.

The Season Pass EXP you earn will contribute to the Season Pass,which, when you progress through various levels, will reward you with free items, such as Gems and Coins. The Season Pass will be refreshed occasionally, so there'll be new rewards for you to claim every now and then.

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Ivan Shahran

Ivan is the Content Lead for MobileMatters and provides coverage for titles such as Clash of Clans, Brawl Stars, Clash Royale, and Wild Rift. In his role, he has written guides and news pieces and attended competitions such as ESL's Snapdragon Pro Series....