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Slime Castle — Idle TD Game

Slime Castle — Idle TD Game

4.5
Rating
1,000,000+ Downloads
2.9.8 Version
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Information

  • Category: Strategy
  • Price: free
  • Age Rating: 10+
  • Available on: Android, Windows*
  • Developer: Azur Interactive Games Limited
  • Updated on: Jul 3, 2026
Pros
  • Experience endless fun
  • Engaging tower defense gameplay
  • Unique slime characters to collect
  • Strategic upgrades for victory
  • Challenging levels to conquer
Cons
  • Slime Castle can be repetitive
  • Limited character customization options
  • In-app purchases can be costly
  • Some levels may feel unbalanced
  • Graphics may not appeal to everyone

User Reviews

(66.9K Reviews)
  • Dustin Hardin
    2025/10/10

    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.

  • Dyandrea Phoenix
    2024/10/05

    The ads in the game are so frustratingly annoying. There are ads for everything, including increasing the level's speed to 3x. This would be fine if the ads weren't so extremely sensitive that you are almost always guaranteed to accidentally click on the ad, instead of closing it out. And if you do accidentally click on the ad and get taken out of the app, it will restart entirely and you do not receive any of the level goodies, which is more irritating when you are halfway through the level.

  • Kate (Demontoastie)
    2025/01/21

    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.

  • Fergydclown
    2026/01/25

    This game does what a lot of new age phone games do. The majority of the time the after you watch an ad the game will crash resulting and result in no reward. The game acknowledges this by saying "ads not ready," when you return to the game to try the ad again. The other issue with this is you never know which ad is going to return you to the game or crash it. I dont mind watching the ads, its the not being rewarded for doing so that leaves this game at a 1 star. The gameplay is actually good.

  • Mike mcd
    2026/03/25

    it's actually a good game but I wouldn't suggest anyone playing it because it's way too many ads it's really half gameplay and the other half to get anywhere you have to watch one to 2-minute Long ads I end up watching ads more than I play the game the game's good but I would not download it'll waste a lot of your time with ads if you want to get anywhere with playing the game that is without spending money of course you can choose not to watch them but it would take you forever to get anywhe

Review Source: Google Play store public user reviews.

FAQ

Can I submit suggestions or feedback to Slime Castle — Idle TD Game?

Yes, players can submit feedback through the app's support section or official website.

Does Slime Castle — Idle TD Game collect my personal data?

The game may collect data for analytics and improvement, but it respects user privacy.

Does Slime Castle — Idle TD Game support offline use?

Yes, you can play the game offline, but some features may require an internet connection.

How do I cancel my Slime Castle — Idle TD Game subscription?

You can cancel your subscription through your device's app store settings.

How much does a subscription to Slime Castle — Idle TD Game cost?

Subscription costs may vary; check the app for the latest pricing details.

How to use Slime Castle — Idle TD Game

How can I contact customer service for Slime Castle?

You can reach customer service through the in-game support option or by emailing support

How do I activate my Slime Castle account?

If you need to activate your account, follow the link sent to your email during registration.

How do I log in to my Slime Castle account?

You can log in using your email and password on the main menu or through connected social media accounts.

What is the customer number for Slime Castle?

The customer number is not publicly listed; please use the in-game support for assistance.

What's New

  • - Fixed known issues