Slime Castle: Idle TD RTS Game

Slime Castle: Idle TD RTS Game

Defend the kingdom from mobs!

8.5K ratings
781 reviews
Free
In-App PurchasesWith Ads

Details

Released
May 3, 2024
Updated
October 28, 2026
Slime Castle: Idle TD RTS Game screenshot #1 for iPhone
Slime Castle: Idle TD RTS Game screenshot #2 for iPhone
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About

Defend a magical forest from invading humans in this idle tower defense RPG. Enhance your slime hero's abilities, collect legendary gear, and utilize powerful skills to defeat waves of enemies. Rebuild and strategize to protect the slime kingdoms.

โœ“Auto-battle idle clicker gameplay
โœ“Distinctive maps and unique enemies
โœ“Flexible and diverse upgrade system
โœ“Collect mighty equipment and level up slimes
โœ“Abundant free rewards
โœ“Strategic fortress, equipment, and enemy control
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What users say about Slime Castle

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What's New in Slime Castle

3.6.2

October 28, 2026

1. Fixed known bugs

19

Subscriptions & In-App Purchases

$6.29

5x Speed

5x Speed

Events

Read more about Halloween in Slime Castle!

Halloween in Slime Castle!

Complete tasks and earn rewards!

Oct 28, 2026 โ€” Nov 12, 2026

Read more about Endless Dark Realm

Endless Dark Realm

Upgrade your Slimes and defend your homeland

Oct 16, 2026 โ€” Nov 13, 2026

Read more about Soulforge Resonance

Soulforge Resonance

Earn Noxraith and a new Mythic Relic

Sep 19, 2026 โ€” Oct 17, 2026

User reviews

Bug

In arena when I see a player with 15m power when I look in their profile THEY HAVE LIKE SSS SLIMES LIKE FIX YORU DAMN GAME AND THEY HAVE THE STUPUD RAMDOM ABILITY WHERE THEY DO MORE DAMAGE THEN WHEN THEY SUPPOSEDLY TO DO KNLY 1Y6M

Arenas

Why is philosophers stone and soul devouring shard only obtainable in guild wars when itโ€™s an arena item, which are OP
Limits access unfairly for smaller guilds or soloโ€™ers
Keep them separate
Pls fix this error

Dragon Orb hoard glitching

I canโ€™t find anywhere to report issues but the stupid orb drop will seize up with a connection symbol every other drop and will cause the ball to drop too late.

Itโ€™s alright as a passive time passer.

I like playing after work to pass the time but itโ€™s pretty pay to win based.

Nice game

Very fun and challenging

Response from developer

Hello! We would like to hear more about this issue and help solve it. Please go to the game Settings and tap a button called Discord. On the game's Discord server, you can submit a bug report. If you decide to go to the game's Discord server, then it would be great if you could submit a detailed feedback.

Developer apps

User experience

๐Ÿž

Reported Bugs

4 issues

Disappearing progress and purchases

Bug

Ads not functioning properly

Bug

Unresponsive or freezing UI

Bug

Inconsistent drop rates and rewards

Bug
โœจ

Requested Features

5 requests

More free slime options

Feature

Improved balance and progression

Feature

Multiplayer and social features

Feature

Better in-game guides and documentation

Feature

Optimization for tablet devices

Feature

FAQ

What is Slime Castle: Idle TD RTS Game?

Slime Castle is a role-playing idle tower defense game where players defend a mysterious forest from invading humans. You play as a slime hero, enhancing abilities, collecting equipment, and using skills to defeat enemies.

What are the main features of Slime Castle?

Key features include an auto-battle idle clicker system, diverse maps and enemies with unique skills, a flexible upgrade system for building your fortress, equipment collection, and strategic combinations of fortress, equipment, and enemy control.

Is Slime Castle free to play?

The game is free to download and play, but it does offer in-app purchases and contains advertisements. This allows players to enhance their experience or progress more quickly.

What kind of strategy is involved in Slime Castle?

Players can set battle strategies by combining their fortress defenses, collected equipment, and by controlling enemies. Finding optimal methods to defeat waves of enemies is a core part of the gameplay.

What platforms is Slime Castle available on?

While not explicitly stated, the application data suggests it is a mobile application, typically available on iOS and Android devices.