Slime Castle — Idle TD Game
Contains adsIn-app purchases
4.4star
61K reviewsinfo
1M+
Downloads
PEGI 7
info
About this game
The bad humans are invading the mysterious forest! The slime kingdoms in the forest are facing a tremendous crisis!
As a slime chosen by the Slime Sage, you can enhance your abilities through battles, collect legendary equipment, utilize powerful skills, defeat waves of terrifying enemies, and safeguard the peace of the forest.
Once you are defeated, come back stronger!
Slime Castle is a role-playing idle tower defense game.
Players could enjoy an excellent role development system, countless powerful weapons, and several impressive battle scenes.
==== Game Features ====
-Auto-battle system with simple idle clicker gameplay. Enjoy a delightful time!
-Many distinctive maps and different enemies with unique skills. Explore more secrets of this world!.
-Flexible and diverse upgrade system. Build your exclusive fortress!
-Collect mighty equipment and level up the adorable slimes. Experience an extraordinary adventure!
-Abundant free rewards to claim. No need to worry about gold anymore!
-Set battle strategy by combining fortress, equipments, and control enemies. Find the optimal methods to defeat your enemies!
Now let‘s start the epic idle adventure and embark on the path to become the greatest Slime Hero!
Experienced a problem? Got a suggestion? You can reach us at [email protected]
As a slime chosen by the Slime Sage, you can enhance your abilities through battles, collect legendary equipment, utilize powerful skills, defeat waves of terrifying enemies, and safeguard the peace of the forest.
Once you are defeated, come back stronger!
Slime Castle is a role-playing idle tower defense game.
Players could enjoy an excellent role development system, countless powerful weapons, and several impressive battle scenes.
==== Game Features ====
-Auto-battle system with simple idle clicker gameplay. Enjoy a delightful time!
-Many distinctive maps and different enemies with unique skills. Explore more secrets of this world!.
-Flexible and diverse upgrade system. Build your exclusive fortress!
-Collect mighty equipment and level up the adorable slimes. Experience an extraordinary adventure!
-Abundant free rewards to claim. No need to worry about gold anymore!
-Set battle strategy by combining fortress, equipments, and control enemies. Find the optimal methods to defeat your enemies!
Now let‘s start the epic idle adventure and embark on the path to become the greatest Slime Hero!
Experienced a problem? Got a suggestion? You can reach us at [email protected]
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Ratings and reviews
4.4
58.8K reviews
Dustin Hardin
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October 10, 2025
Update: They recently changed the mini games to be much more difficult so that they could sell their new mini game passes. I recommend not playing 🙏 Not F2P friendly. Decent fun for outrageous prices. Want a better (or new) character? You need to drop more than $30 for each one. There is only one high-ranking slime available for F2P players. The pull rates for upgrades are incredibly low considering the price they want you to pay.
7 people found this review helpful
Azur Interactive Games Limited
August 19, 2025
Hello! Making in-game purchases only speeds up your progress, it's not the only way to get ahead in the game. There are plenty of other ways to earn in-game resources. So, if you're an active player, you can still compete with others. Good luck!
Matthew Warren
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September 17, 2025
2 stars instead of one because I do like the game. The problem is the game consists of 90% ads and 10% gameplay. This is one of the worst games I have played in a long time on mobile as far as ads go. edit: I woke up to see your cut and paste response. I played for 25 minutes this morning before having to wake my son up and there were 17 ads........ that's ridiculously absurd. at least give us a paid option to skip ads.
7 people found this review helpful
Azur Interactive Games Limited
September 17, 2025
Hi! We need the revenue from ads to keep the work on the game going. We are doing our best to minimize it and make it comfortable for playing. We hope for your understanding and patience.
K (Demontoastie)
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January 21, 2025
Edit; Ads work maybe 15% of the time, which is INCREDIBLY frustrating as ads are 99% of how you can progress at a reasonable rate. I've been stuck at the same area for close to 3 months now because ads stopped working and progression is so slow without the boosts. Honestly love this game. While there 'isn't much to do', this type of phone game has a charm a lot have lost. I hope while the game continues to grow and change, it doesn't lose that simplicity.
107 people found this review helpful
Azur Interactive Games Limited
January 21, 2025
Thank you for the objective criticism and interest in the development of the game! Our development team will definitely consider your opinion and make the game even better. Stay tuned for the updates! :)
What’s new
1. Improved anti-rollback and cheat detection for better data security.
2. Enhanced battle stability and performance for smoother gameplay.
3. Converted some materials to online versions for data consistency.
4. Adjusted Astral Set attributes and fixed related boss challenge issues.
5. Fixed rare guild raid reward errors and Elemental Tower UI bugs.
2. Enhanced battle stability and performance for smoother gameplay.
3. Converted some materials to online versions for data consistency.
4. Adjusted Astral Set attributes and fixed related boss challenge issues.
5. Fixed rare guild raid reward errors and Elemental Tower UI bugs.
App support
About the developer
AZUR INTERACTIVE GAMES LIMITED
NIVIAN COURT, Floor 3, 16 John Kennedy
Nicosia 1087
Cyprus
+357 99 484236
