Neon Castle: Idle TD Game

Contains adsIn-app purchases
4.4
165 reviews
5K+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this game

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!
Updated on
Jun 28, 2025
Available on
Android, Windows*
*Powered by Intel® technology

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity, App info and performance, and Device or other IDs
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.4
151 reviews
AnteUp
May 15, 2025
It's a pretty fun game but it certainly has concerning flaws. I'm playing purely f2p and making steady-ish progression which is only possible by watching a bazillion ads. HUGE issue with your stats and bonuses rolling back. It's like two steps forward and one step back... extremely discouraging. If this ever gets fixed I'll redownload and reassess. Too bad the game is really fun outside of that.
2 people found this review helpful
Did you find this helpful?
Rob Breckenridge
March 22, 2025
ok so after playing the game for about a week and checking to make I was not seeing things......there is a major issue with the research section, the silver and gold gain upgrades per kill, boss kill etc are the trouble areas. I spent close to 750k coin and nearly 1k in gems to upgrade these areas!! Only to have them reset to lvl 0 in less then 12h later. This is a constant issue and I am tired of beating my head against the wall. Un-installed and finging better not happy was enjoying it
1 person found this review helpful
Did you find this helpful?
Medu Games
March 22, 2025
Thanks for reporting this! We’re aware of the issue and working on a fix. We understand how frustrating this is and truly appreciate your time. A solution is on the way, and we’d love to have you back once it’s resolved!
Chris Forry
April 17, 2025
I was actually getting into this game until I discovered to claim a mission reward required a ad watch. This killed the complete experience for me because it shows what the devs are about. It's a real shame games like these get tarnished by greed and bad business practice.
1 person found this review helpful
Did you find this helpful?
Medu Games
April 17, 2025
We're sorry to hear that. Out of the 21 tasks, only "4" can be accessed through optional rewarded ads. These 4 tasks are advanced versions of existing tasks and offer higher rewards compared to regular ones. We thought this was a fair balance, but thank you for your feedback.

What’s new

Neon Castle’s big update is now live.
The tournament has started. You can now join a tournament every 3 days.
With the tournament, you will experience new enemies and unlimited waves.
The Emerald event has begun.
You can access these new satellites by collecting bold nuts during the Emerald event.
6 new support orb runes have been added. You can find them on the research page.
A new ship has been added: "Sun"
All reported errors and bugs have been fixed.