# Merge Tower Defense 2021 — Drag and Merge > Merge towers to level up and defend your gem in a tactical tower defense game. (iPhone/iPad app by Lazycell Inc..) - Source: https://appshunter.io/ios/app/merge-tower-defense-2021/id1515828166 (this page in markdown: same URL + `.md`) - Developer: [Lazycell Inc.](https://appshunter.io/developer/1466830418) - Category: Games, Puzzle, Strategy - Price: Free - Rating: 4.28/5 from 32 App Store ratings · 5 written reviews indexed - Age rating: 9+ - Requires: iOS 10.0 · 259 MB - Languages: English - Released: 2020-09-30 - Data updated: 2026-07-07 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/merge-tower-defense-2021/id1515828166/reviews.md ## What is Merge Tower Defense 2021? Merge Tower 2021 is a very simple game. Just drag and merge your towers to level up to protect your gem. Watch your towers level up and become powerful defenders, and get exciting new powers to crush bosses and enemies! Test your tactical skills in a classic challenging tower defense game! ## Key features - Drag and merge towers - Level up defenses - Protect your gem - Crush bosses and enemies - Tactical gameplay ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/merge-tower-defense-2021/id1515828166/reviews.md ### 2/5 — Startet nicht mehr. *2022-09-18* Das Spiel macht echt Spaß. Aber jetzt nach paar Stunden Spielspaß starte das Spiel nicht mehr. Bitte Absturz fixen. Nach Play kommt 90% und stürzt dann ab. Hab es mehrmals getestet, IPhone 7p iOS 15 und iPhone 8p iOS 16. immer wenn min ein Turm Stufe 19 erreicht hat stürzt es ab sobald man Play Button drückt ### 3/5 — Tolles Spiel, doch leider nicht mehr spielbar *2022-04-21* Habe das Spiel echt gemocht, weil es schön einfach gestrickt war. Jedoch stürzte das Spiel ab, als ich 2 Türme Level 19 kombinieren wollte. Seitdem startet das Spiel, wenn ich jedoch auch den großen “Play” Button klicke, stürzt die App sofort ab. Echt schade, bitte fixt das dringend!!! ### 1/5 — Keeps crashing *2021-12-11* Unfortunately the app crashes, if you delete and reinstall it works for a short time but you lose all your progress, which is a shame as I really enjoy the game and had put a lot of time into it, getting to be one of the top players. Please sort so I can get playing again. ### 1/5 — Games Asks for a Review on First Load *2021-09-25* And since I haven't even seen so much as a splash screen yet (much less actually gotten to play),here's the review you asked for. **Developer response:** Thanks for your comment and let me know what happened. Apple provides developers with a piece of code that will request App Store reviews. They will also control the opportunity to display the prompt, not the developer. They say in the document, "the prompt will only be displayed to a user a maximum of three times within a 365-day period." I don't know why they ask you to do this on the first load. If I were you, I would do the same thing. You let me know what happened and what should I improve. Thanks! ### 1/5 — Bad screen burn... *2020-11-09* I enjoyed wasting time with this game, that is until I quit the game to find it burned itself into my iPad screen... now everywhere I go I see this game. Not impressed, haven’t seen this happen ever before. Hopefully this can be remedied, as I would keep playing, but don’t want it to get worse. ## Frequently asked questions about Merge Tower Defense 2021 ### What is the main gameplay of Merge Tower Defense 2021? The main gameplay involves dragging and merging your towers to level them up. This creates more powerful defenses to protect your gem from incoming enemies and bosses. ### Does Merge Tower Defense 2021 have offline play? The provided data does not specify if Merge Tower Defense 2021 supports offline play. Many tower defense games offer offline modes, but this feature is not explicitly mentioned. ### How does merging towers work in Merge Tower Defense 2021? You simply drag identical towers onto each other to merge them. This action levels up the tower, increasing its power and effectiveness against enemies. ### What is the age rating for Merge Tower Defense 2021? Merge Tower Defense 2021 has an age rating of 9+, making it suitable for younger players and above. ### How often is Merge Tower Defense 2021 updated? The app was last updated on April 28, 2021, with version 1.0.5. This suggests updates may not be very frequent. ### Does Merge Tower Defense 2021 have ads? Yes, Merge Tower Defense 2021 contains advertisements as indicated by the 'hasAds' flag. ### What devices can I play Merge Tower Defense 2021 on? Merge Tower Defense 2021 is available on iPhone, iPad, and iPod devices. ### Is Merge Tower Defense 2021 free to play? Yes, Merge Tower Defense 2021 is free to download and play, but it does contain advertisements. ## Version history (last 5 releases) ### 1.0.5 — 2021-04-28 Fix the issue the button getting more attack benefit couldn't be shown. Update to the latest Unity version. ### 1.0.4 — 2021-01-24 Bug fixes ### 1.0.3 — 2020-11-17 Bug fixes ### 1.0.2 — 2020-10-03 Bug fixes and data updates. ### 1.0.1 — 2020-10-02 Bug fixes and performance improvements. ## Apps similar to Merge Tower Defense 2021 | App | Rating | Price | Category | | --- | --- | --- | --- | | [Merge Legions: War Battle Game](https://appshunter.io/ios/app/merge-legions-war-battle-game/id1644006263) | 4.5 (4,051) | Free | Games | | [Shooting Tower: Defense Game](https://appshunter.io/ios/app/shooting-tower-defense-game/id1605594063) | 4.7 (15,683) | Free | Games | | [Crazy Defense Heroes: RPG TD](https://appshunter.io/ios/app/crazy-defense-heroes-rpg-td/id1300027167) | 4.8 (8,069) | Free | Games | | [Booblyc TD: Tower Last Defense](https://appshunter.io/ios/app/booblyc-td-tower-last-defense/id1213940496) | 4.4 (64) | Free | Games | | [Concrete Defense - WW2 TD](https://appshunter.io/ios/app/concrete-defense-ww2-td/id969774786) | 4.3 (304) | Free | Games | | [Crazy Kings Tower Defense Game](https://appshunter.io/ios/app/crazy-kings-tower-defense-game/id924907196) | 4.7 (1,799) | Free | Games | ## More apps by Lazycell Inc. - [Cross Shooter](https://appshunter.io/ios/app/cross-shooter/id426900394) - [Your Baby Time](https://appshunter.io/ios/app/your-baby-time/id1466830419) - [Brick Board](https://appshunter.io/ios/app/brick-board/id1470806698) - [Merge Fruits 3000](https://appshunter.io/ios/app/merge-fruits-3000/id1536877557) - [I Want Watermelon](https://appshunter.io/ios/app/i-want-watermelon/id1562282146) All apps by Lazycell Inc.: https://appshunter.io/developer/1466830418 ## Related topics [merge tower defense 2021](https://appshunter.io/ios/topics/merge-tower-defense-2021) · [merge tower defense games](https://appshunter.io/ios/topics/merge-tower-defense-games) --- *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 2026-07-07.*