Neon Castle: Idle TD Game v4.0.5

Medu Games

Contains ads • In-app purchases

About this app

Developer Description

Defend Your Neon Castle in an Endless Tower Defense RPG

Welcome to Neon Castle - Idle TD Game, where tactical strategy meets thrilling tower defense action! In this addictive idle game, you’ll build and upgrade the perfect tower to protect your castle from relentless neon enemies. With endless waves of opponents charging towards your territory, only the smartest commanders will survive the apocalyptic battles. Can you become the ultimate defender in this incremental defense game?

Build, Upgrade, and Dominate!
Your neon castle is under attack! Construct the perfect tower, enhance your defenses, and prepare for endless wars. Choose from multiple towers, each with unique abilities and powerful ultimates. Upgrade their firepower and reinforce your castle defense with special units called orbs. These orbs unleash devastating attacks, helping you crush the enemy waves before they overwhelm your base!

Strategic Tower Defense with RPG Elements
This is not just another idle tower defense game! With deep RPG gameplay, you’ll research powerful technologies in the lab, unlock new towers, and experiment with different tower defense strategies. Every decision matters, and only a true tactician can survive the increasing difficulty of endless waves of enemies.

Roguelike Gameplay Meets Tactical Strategy
Adapt to ever-changing challenges with roguelike gameplay! Each battle lets you pick from a set of game-changing cards, giving you different abilities and upgrades. Will you focus on high-damage attacks, area control, or ultimate defensive tactics? With so many possibilities, every battle in Neon Castle - Idle TD Game feels fresh and exciting.

Compete on the Leaderboard & Join In-Game Events!
Are you the best defender? Climb the global leaderboard and prove your skills in competitive play. Take part in in-game events to win exclusive rewards that will make your tower even stronger. The competition never stops, and the battle for the top is fierce!

Why You’ll Love Neon Castle - Idle TD Game
Defend your castle in an intense idle tower defense challenge
Upgrade and unlock new towers with unique abilities
Experiment with roguelike gameplay choices and tactics
Strengthen your tower with powerful orbs
Face endless waves of enemies in an epic castle defense war
Participate in in-game events and climb the leaderboard
Enjoy an immersive apocalyptic world filled with neon enemies

If you love tower defense games, RPG games, and idle strategy games, then Neon Castle - Idle TD Game is the perfect challenge for you! Download now and see if you have what it takes to build the perfect tower and defend your territory in the ultimate incremental defense game!

What's New

Bugs fixed.

In-app purchases

$0.99 - $99.99 per item

Version Information

Version: 4.0.5
Downloads: 10K+
Updated on: Oct 21, 2025
Released: Mar 7, 2025
Requires: Android 7.0

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Neon Castle: Idle TD Game users say on Google Play

★★★★★

Kaiden Teague

the best out of the best

★★★★

Russell Cook

I only have two problems with this game, you eventually get to a point where you're having to watch ads to obtain enough gold for upgrades and the Tourney events take too long to lose. My current run is over wave 2000 and I'm nowhere close to losing and it's been an hour and a half. I have had it happen before where my tourney run was so long I lost after the event was over and received no rewards.

★★★

Luraina Shadraco (AnnyMouso-Lunaxire)

I'm going to give it a chance, but it looks like a glowy version of The Tower - Idle Tower Defense made Aug 18, 2021 by Tech Tree Games, 4 years prior to this game. Same everything as far as the images for the game convey.

★★

Altharch / Ralaku (The Avali)

Really? Pay to complete events? pay to win all over the place, no. Re: I am not paying to go further than a few steps into the puzzle event, nor several steps after. A purchase should not be for individual levels, it should be a pass a separate tier. Locking progression until you get the last one is absurd too. It's locked at level 5 and the only way to progress is spend $0.99, THEN I see I head that levels 13, 21, and 30 all also have their own separate charge.

★

LittleEvan

the game itself is pretty alright. what's not fun are the absurd amount of in-game purchases it shoves down your throat. want any decent gold after a round? watch a 60 second ad. want daily gambling spins? watch five 60 second ads! llike the battle pass? pay for premium battle pass. want to progress an event? pay real money to claim a tier that's mandatory to progress the event. do not try this. edit: the developer response to this is a blatant lie. it's not f2p friendly at all.