# Merge TD: Idle Tower Defense — How far can you get?

> Merge towers to defend against zombies in an idle tower defense game. (iPhone/iPad app by DoubleJump Games Inc..)

- Source: https://appshunter.io/ios/app/merge-td-idle-tower-defense/id1455258401 (this page in markdown: same URL + `.md`)
- Developer: [DoubleJump Games Inc.](https://appshunter.io/developer/924098402)
- Category: Games, Simulation, Strategy
- Price: Free
- Rating: 4.80/5 from 29,823 App Store ratings · 50 written reviews indexed
- Age rating: 9+
- Requires: iOS 11.0 · 146 MB
- Languages: American English
- Released: 2019-04-14
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/merge-td-idle-tower-defense/id1455258401/reviews.md

## What is Merge TD?

Zombies are terrorizing the land, and we need your help! Merge towers by dragging them on top of each other to build up your defenses. Fight off waves of Zombies and take down bosses to unlock new worlds. Take a break and watch your towers do all the work for you while you are away. Come back to see your progress and claim your idle earnings. 

Try out a different type of Tower defense game! Blending elements from merge games, tower defense games, and idle games. 

Features:
● Merge and unlock 30+ Towers! 
● Multiple regions to explore!
● Defeat waves and waves of zombies!
● Participate in unique events! 
● Progress while you're offline! 
● Play online or offline! No connection required. 

Privacy Policy: https://www.doublejump.com/privacy-policy
Terms of Service: https://www.doublejump.com/terms-of-service

Made with love from Victoria, Canada

## Key features

- Merge and unlock over 30 towers
- Explore multiple regions
- Defeat waves of zombies and bosses
- Participate in unique events
- Progress while offline
- Play online or offline

## What do users think of Merge TD?

Overall sentiment: neutral

**Pros**

- 🚀 Fun and addictive gameplay
- 👍 Great game from a popular creator
- 💡 Interesting tower merge mechanics

**Cons**

- 🐛 Frequent login/connection issues
- 🔍 Lack of depth and strategy
- 💰 Excessive ads and in-app purchases

**Commonly reported bugs**

- Towers disappearing after updates
- Prestige system not working as expected
- Chest/present ads not loading properly

**Most requested features**

- Add more tower types and abilities
- Improve progression system
- Implement a speed-up option
- Add a trash/discard feature for towers

## Recent user reviews (10 of 50)

All indexed reviews: https://appshunter.io/ios/app/merge-td-idle-tower-defense/id1455258401/reviews.md

### 5/5 — Can’t login

*2023-01-06, version 1.5.9*

Hi ssundee I really like your videos and when I found out about your game I was like oh my gosh I want to play this game so I got the game and I got login but then when I got to were it supposedly was suppose to let me play it keeps saying that there’s an error and I can’t play it so I just tried to login again it keeps saying there’s a error so I’m a little bit sad but I love your videos and I love you channel.

Ps bifflwiffls a foot

### 2/5 — Merge TD

*2022-11-08, version 1.5.9*

I awfully hate this game. I am a really great fan of Ssundee but this game is having really bad problems and I don’t like it. i’ve been trying to reset my phone going back into the game cause again I’m going back into the game again and still doesn’t work. I don’t know why but I’m going to give this a two star rating. I’m sorry Ssundee but the only thing that I just want to say is I will love this game if this glitch won’t be here. It keeps saying to report the problem but I don’t know what the problem is so I’m going to give this a two star rating and I hope you can improve this problem. Love you Ssundee ❤️

### 1/5 — Connected to PlayFad successfully or not?

*2022-11-01, version 1.5.9*

I am have trouble getting into the game, before when I first had it I LOVED it but then it just started saying Connected to PlayFad successfully and wouldn’t stop. This game is AWESOME underneath but the loading screen will not stop and I even tried reinstalling it again today after a year or so and the same thing happened. Before I would try about fifty times and I was able to finally get in but after multiple times having to do that was not worth it to me. I hope all of you who can get in enjoy the game but it won’t load for me. 🙁

### 1/5 — Don’t Download; Doesn’t work

*2022-06-04, version 1.5.9*

Don’t waste your time with this app. It doesn’t work and the developers don’t care to fix the issue. Read a review from 3 years ago that reported the same issue; game doesn’t load after it has “connected to PlayFab successfully,” then it gives the option to report an issue by sending an e-mail to the developer that clearly doesn’t care or is too inept to fix issue. 
I have tried to load this on my iPhone and my iPad and I received the same error message on both devices.

### 5/5 — PLAYFAB GLITCH FIX🥕🥕

*2021-08-04, version 1.5.9*

For some reason, when you are signed into game center, the game will not connect to PlayFab, even though it says it did in the menu. The fix is simple, just sign out of game center. Dont worry, other games wont have the data wiped. It is all stored in game center. You can sign in and out of game center in the iPhone settings. Just scroll down till you see Game Center.

### 3/5 — Won’t start

*2021-07-31, version 1.5.9*

So I absolutely loved this game! But it no longer starts for me. It’ll say “connected to PlayFab” but then won’t start. I uninstalled and reinstalled. No matter if I’m on WiFi, data, it just won’t start. The game is super great and I’m free to play so it doesn’t feel pay to win at all. Again I’m going to try a couple of ways to fix this, but I’d like to here back from the creators or someone who can help me. This also wasn’t an all the sudden thing. This has been a thing for months on end so it can’t be a the servers are shut down kinda thing.

### 3/5 — Good game but it doesn’t work anymore

*2021-07-19, version 1.5.9*

So when I first played this game it was amazing and I loved it, but I ran into a problem a few months ago to where it would log me in and the say error. I’ve reported it multiple times like it says to do but it doesn’t work. I just want to play this game again because it was so fun, and I’m a huge fan of SSundee. I would like to know why this is happening and for it to be fixed, but overall it was a fun game before this.

### 1/5 — I Can’t Log In

*2021-07-03, version 1.5.9*

In not the person to write reviews, but this is a problem that I want fixed. When I try to log in, it has my Game Center notification say I’m signed in. After a minute or two, it says it detected an issue and I can’t log in. This started happening after I played. A couple days after I started playing it had this issue and has been doing the same thing for 2 years. Ive tried uninstalling then reinstalling but that didn’t work and I don’t know what to do now. I hope this gets fixed soon

TL;DR: I haven’t logged in for 2 years due to an issue logging in.

### 3/5 — Good game but less ads please

*2021-06-28, version 1.5.9*

I love the game I could not stop playing but when I go to buy a new tower a ad button is there but I am a BIG fan of ssundee so I understand you make money off of it so it’s ok but try to put it somewhere else because it is quite annoying to watch an ad every time you want to buy a tower but it’s OK but try to put it somewhere else instead of where you buy button or are you do in game purchases. 

P.S Ssundee you are my favorite Youtuber 😸

### 3/5 — I can’t get the game to load.

*2021-06-19, version 1.5.9*

I am having a problem with loading up the game on my iPad. I just re downloaded the game on my new gen 7 iPad and I can’t get it to load. I don’t know why but I have tried it with my Bluetooth off and on and it still won’t load. I am reporting this bug because I had internet connection when I tried to load it. Does that have anything to do with not being able to load the game? I am sorry about my complaint.

## Frequently asked questions about Merge TD

### What is Merge TD: Idle Tower Defense?

Merge TD: Idle Tower Defense is a mobile game that combines elements of merge games, tower defense, and idle games. Players merge towers to build defenses against waves of zombies and bosses, with progression continuing even when offline.

### What are the key features of this game?

Key features include merging and unlocking over 30 different towers, exploring multiple regions, defeating waves of zombies and bosses, participating in unique events, and progressing while offline. The game can be played both online and offline.

### Is Merge TD: Idle Tower Defense free to play?

Yes, the application is free to download and play. The provided data indicates no in-app purchases or ads, suggesting a completely free experience.

### What devices is Merge TD: Idle Tower Defense compatible with?

While specific device compatibility is not detailed, mobile games of this nature are typically designed for iOS and Android smartphones and tablets. It is recommended to check the app store listing for your specific device.

### How does the idle progression work in this game?

The idle progression allows your towers to continue defending and earning resources even when you are not actively playing the game. You can return later to claim your idle earnings and see your progress.

## Version history (last 5 releases)

### 1.5.9 — 2020-05-14

- Bug Fixes

### 1.5.8 — 2020-04-28

- Updated SDK's

### 1.5.7 — 2019-12-01

- Added More Events
- Bug Fixes

### 1.5.5 — 2019-10-17

- Fixed some bugs

### 1.5.4 — 2019-10-09

- Fixed a bug causing issues loading into the game

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## More apps by DoubleJump Games Inc.

- [Grappling Garry](https://appshunter.io/ios/app/grappling-garry/id936854656)
- [Slash Mobs](https://appshunter.io/ios/app/slash-mobs/id1024306067)
- [Idle Tuber: Streamer Simulator](https://appshunter.io/ios/app/idle-tuber-streamer-simulator/id1477871348)

All apps by DoubleJump Games Inc.: https://appshunter.io/developer/924098402

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*