Slime Castle is an idle tower defense mobile game where you’re tasked with defending your castle using an evolving slime army. To help you power up faster, the game provides redeemable codes that unlock freebies like Gems, Auto Grind Tickets, Epic Chest Keys, and more. This guide lists all currently active Slime Castle codes, how to use them, and where to find more.
All Working Slime Castle Codes November 2025
Here are the currently active and verified codes you can redeem in-game for rewards:
| Code | Reward |
|---|---|
HALLOWEEN | Free rewards (New) |
JOY4NOV | Free rewards |
SUNDAYFM | 20 Auto Grind Ticket |
Tip: Copy and paste the codes exactly to avoid errors during redemption.
Expired Codes
These codes are no longer active and won’t grant rewards:
| Code | Reward |
|---|---|
| FUN4OCT | Free rewards |
| LEAGUE | Free rewards |
| SLIME999 | Free rewards |
| GOLFPOWER | 10 Golf Power Potions |
| SLIMEFUN | 10 Epic Chest Keys, 30 Lucky Wheel Tickets |
| SLIME777 | Lucky Wheel Tickets |
| GUILDRAID | Free rewards |
| SMILINGS | 10 Epic Chest Keys, 3 Epic Runes |
| SLIM3TD | Free rewards |
| TRYME2025 | Free rewards |
| WEEKLY | Free rewards |
| LUCKY2025 | 30 Lucky Wheel Tickets |
| MONDAY175 | Free rewards |
| LOVE2025 | 199 Hearts |
| SLIME666 | 200 Gems, 10 Super Keys |
How to Redeem Slime Castle Codes
Redeeming codes is a simple process. Here’s how to do it on both Android and iOS:
- Open the game and finish the tutorial if you’re a new player.
- Tap the cogwheel (Settings) icon in the top-right corner of the screen.
- Select the “Redeem Code” option from the menu.
- Enter one of the active codes into the textbox.
- Hit Confirm to claim your rewards instantly.
Where to Find More Slime Castle Codes
You can find the latest codes from:
- Official Slime Castle Discord: New codes are often shared in their announcement channels.
- Developer social media (Twitter/Facebook): Occasionally, they run code giveaways tied to events or milestones.
- Or simply bookmark this page and check back frequently—we update the list as soon as new codes drop.
Why Isn’t My Code Working?
If a code doesn’t work:
- Double-check for typos — even an extra space can make the code invalid.
- Make sure it’s still active — expired codes won’t redeem rewards.
- Some codes may only be valid for a limited time or certain regions.
If you’re certain the code should work and it doesn’t, it may have just expired—developers usually don’t give advance notice.
Tip: You can also bookmark our own Fdaytalk Gaming page, where we regularly share all working codes and guides for Slime Castle, and many other games. It’s an easy way to stay updated without missing new drops.
Slime Castle is a colorful idle tower defense game where you play as a slime commander defending your kingdom against endless waves of enemies. The game combines strategic upgrades with casual idle mechanics, letting you build defenses, evolve your army, unlock skills, and gather powerful gear. It’s available on both Google Play and the App Store.
If you’re into quirky, defense-style games with charm, this one’s worth checking out.
