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Slime Castle Codes (February 2025)

I'm a cute ball of slime and this is my castle!

Updated: February 13, 2025
Added a new code!

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If you're a cute ball of slime, it's quite likely that meanies will find a way to bully you. But you are a resourceful ball of slime, and you've got what it takes to defend your Slime Castle. Collect resources and upgrade your base against the waves of slime haters.

If you feel like the waves of enemies are becoming unbearable, you can rely on Slime Castle codes to give you all the resources you need to improve your defenses—such as free Gems and Super Keys. For a game where you are the one that fights slime, check out our article on Doodle Magic Wizard vs Slime codes and discover all the freebies that this title has to offer, too!

All Slime Castle Codes List

Active Slime Castle Codes

  • SLIME666—Redeem for 200 Gems and 10 Super Keys

Expired Slime Castle Codes

  • There are no expired Slime Castle codes right now.

Related: Legend of Slime codes

How to Redeem Codes in Slime Castle

Here are the steps that you need to take to redeem your codes in Slime Castle (available on Google Play and the App Store):

How to redeem Slime Castle codes.
Image by Pro Game Guides
  1. Launch Slime Castle on your device.
  2. Complete the tutorial.
  3. Press the cogwheel icon in the top-right corner of the screen.
  4. Choose Redeem Code from the drop-down menu.
  5. Enter an active code into the text box.
  6. Hit Confirm to reap your free rewards.

How to Get More Slime Castle Codes

If you've got plenty of time to spare, you can dig for Slime Castle codes yourself by joining the Slime Castle - Idle TD Discord server. However, we suggest you skip scavenging through all the posts and rely on our article as your primary source for the latest code drops. Just bookmark the page and come back to it whenever you need more free goodies.

Why Are My Slime Castle Codes Not Working?

Typos are the greatest enemy of Slime Castle codes. To avoid them, you should rely on the good old copy/paste approach. Keep in mind that some codes won't work because they've reached their expiration date. If you come across such codes in our article, let us know so that we can put them where they should be.

What Is Slime Castle?

Slime Castle is an idle tower defense title in which you defend your adorable base against incoming waves of all sorts of enemies. As you defeat your foes, you'll gain various resources that you can invest in upgrading your defenses and making sure that you can survive as many waves as possible. Unlock new skills and collect legendary equipment to show your enemies that you're the true Slime Sage.

Get your hands on many more free rewards for all sorts of experiences by checking out our Game Codes section. If you're a fan of Roblox, don't forget to visit our Roblox Promo Codes article as well!


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Author
Image of Vuk Vladisavljev
Vuk Vladisavljev
Vuk Vladisavljev is a codes writer for GAMURS, whom you’ll likely find hunting for new codes for our Roblox gamers. He enjoys scraping the furthest corners of Fallout: New Vegas or having an existential crisis in Disco Elysium. He’s been gaming for almost 25 years and can’t imagine life without dogs, loud music, or his PC rig.