# Defend the Center: Merge TD — Roguelike Tower Defense game > Merge Tower Defense game with roguelike skill strategy and dice dungeon challenges. (iPhone/iPad app by sehoon jang.) - Source: https://appshunter.io/ios/app/defend-the-center-merge-td/id6756816738 (this page in markdown: same URL + `.md`) - Developer: [sehoon jang](https://appshunter.io/developer/693896105) - Category: Games, Action, Simulation - Price: Free with in-app purchases - Rating: 3.00/5 from 2 App Store ratings - Age rating: 12+ - Requires: iOS 15.0 · 404 MB - Languages: English, French, German, Indonesian, Italian, Japanese, Korean, Portuguese, Russian, Chinese and 5 more - Released: 2026-01-09 - Data updated: 2026-07-31 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/defend-the-center-merge-td/id6756816738/reviews.md ## What is Defend the Center? - Enemies are attacking from all sides! Can you protect the Center? [Defend the Center] is an addictive Merge Tower Defense (TD) game where you must defend the Core from endless waves of monsters. [Game Features] - Infinite Merge & Upgrade Combine identical towers to create even stronger ones! Strategically place various towers like Machine Guns, Missiles, and Lasers to build your ultimate defensive line. - Roguelike Skill Strategy No more boring defense! Choose from random skill cards every time you level up. Your choices—Attack Speed, AoE Damage, Critical Hit—will change the tide of battle. - Test Your Luck in the Dice Dungeon Stuck on a level? Challenge the 'Dice Dungeon'! Roll the dice to acquire rare resources and items to upgrade your towers even further. Download now and Defend the Center! ## Key features - Infinite Merge & Upgrade towers - Strategic tower placement - Roguelike skill card system - Dice Dungeon for rare resources - Defend the Core from monster waves ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Dungeon Key 2 | $6.99 | one-time | | Gem6 | $19.99 | one-time | | Gem4 | $6.99 | one-time | | Dungeon Key 3 | $9.99 | one-time | | Ad Ticket Pack | $3.99 | one-time | | Ad Pass Ticket 2 | $12.99 | one-time | | Ad Pass Ticket 3 | $19.99 | one-time | | Remove Banner + Interstitial Ads | $3.99 | one-time | | Gem5 | $11.99 | one-time | | Gem3 | $2.99 | one-time | ## Frequently asked questions about Defend the Center ### What is Defend the Center: Merge TD? Defend the Center: Merge TD is a mobile game where players defend a core from waves of enemies by merging and upgrading towers. It features roguelike skill choices and a Dice Dungeon for acquiring resources. ### How do you upgrade towers in Defend the Center: Merge TD? You upgrade towers by merging two identical towers to create a more powerful version. This strategic merging is a core mechanic for building your ultimate defensive line. ### What is the Dice Dungeon in Defend the Center: Merge TD? The Dice Dungeon is a special challenge mode where you roll dice to obtain rare resources and items. These can be used to further upgrade your towers and overcome difficult levels. ### Does Defend the Center: Merge TD have ads? Yes, Defend the Center: Merge TD contains advertisements. This is common for free-to-play games that offer in-app purchases. ### What devices does Defend the Center: Merge TD support? Defend the Center: Merge TD is available on iPhone, iPad, and iPod. It is designed for iOS devices. ### What is the age rating for Defend the Center: Merge TD? The game has an age rating of 12+, indicating it is suitable for players aged 12 and older. ### How often is Defend the Center: Merge TD updated? The latest version, 1.21, was released on February 15, 2026, indicating a relatively recent update. Further updates may occur periodically. ### What are the main gameplay mechanics in Defend the Center: Merge TD? The core mechanics involve merging identical towers to create stronger ones, strategically placing them to defend against enemies, and making choices from random skill cards upon leveling up. ## Version history (last 5 releases) ### 1.21 — 2026-02-15 Bugs Fixed a bug where the tower selection window would not close Fixed a bug where Sword Wind's upgrade skills were swapped Other minor bug fixes Changes Changed the Barricade Tower's base ability from duration to DoT damage Changed the Barricade's upgrade skill "Wall of Lamentation" from DoT damage to double size ### 1.18 — 2026-02-08 Minor bug fixes ### 1.10 — 2026-01-25 Bugs Fixed tutorial-related bugs Fixed tower upgrade-related bugs ### 1.09 — 2026-01-19 Minor bug fixes ### 1.05 — 2026-01-12 Minor bug fixes ## More apps by sehoon jang - [Extreme Job Hero's Manager](https://appshunter.io/ios/app/extreme-job-heros-manager/id997323990) - [Extreme Job Hero's Manager VIP](https://appshunter.io/ios/app/extreme-job-heros-manager-vip/id1412971712) - [Dungeon Corporation](https://appshunter.io/ios/app/dungeon-corporation/id1435116356) - [Super Size Goddess](https://appshunter.io/ios/app/super-size-goddess/id6746091439) All apps by sehoon jang: https://appshunter.io/developer/693896105 --- *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 2026-07-31.*