Terraria TD Remastered Codes (May 2026)

Terraria TD Remastered is a Roblox tower defense game developed by Monster's Games. It draws on the iconic pixelated world of Terraria to deliver wave-based strategic combat where players collect and forge units, outfit them with weapons, armor, and accessories, then hold off increasingly punishing enemy waves and bosses. Codes hand out currency, upgrade materials, and container items that give your roster a meaningful boost without grinding through early content.

Working Terraria Tower Defense codes

There are currently six active codes. Redeem them in Terraria TD Remastered on Roblox while they last.

How to redeem codes in Terraria TD Remastered

Code redemption is locked until you finish at least one round, so play through an initial wave before attempting to enter any code.

Step 1: Launch Terraria TD Remastered in Roblox and complete at least one full round. The code input menu is unavailable until this condition is met.

Step 2: Click the Unit icon at the top of your screen to open the units panel.

Step 3: Click the Gear icon within that panel. The Codes section will appear on the left side.

Step 4: Paste your chosen code into the text field. Codes are case-sensitive and some include spaces, so copying and pasting directly avoids input errors.

Step 5: Press Enter on your keyboard. Rewards are delivered to your account immediately when a valid code is accepted.

What the rewards are used for

Coins are the main in-game currency for summoning units and shopping in the Market, a feature that opens up after clearing Act 1. Hammers are the primary tool for giving units distinct traits, and they appear in the Market most often. Mana Crystals raise all of a unit's multipliers simultaneously, making them valuable for broad upgrades. Fallen Stars let you target and improve a single specific multiplier on a unit. Crates — including Iron and Golden — can be opened to receive a random mix of these materials, with Golden Crates offering rarer drops.

Expired Terraria Tower Defense codes

The codes below have stopped working and will return an error if entered.

Where to find new codes

Monster's Games issues new codes to mark player count milestones and game updates. The Official Terraria TD Discord is where codes tend to appear first, posted in the announcements channel. The Terraria TD Remastered Trello board is also maintained by the development team and covers unit stats, upcoming features, and game mechanics in detail — useful for players looking to understand the game more deeply beyond just grabbing freebies.