Air Defense-TDS1.6.8

Air defense just got serious. Are you ready to take command?

Step into the role of a defense commander and battle waves of hostile aircraft in this explosive tower defense shooter. Control anti-air guns with intuitive swipe controls, unlock powerful skills, and face off against massive aerial bosses.

Key Features:

Swipe & Shoot - Smooth touch controls put the firepower in your hands.

Epic Boss Battles - Take down enemies with missiles, bombers, and suicide drones.

Skill Upgrades - Build your strategy with critical hits, splash damage, bullet split, and more.

Diverse Missions & Maps - Progress through multiple zones and dynamic battlefields.

Offline Friendly - Jump into the action anytime, no connection required.

A perfect mix of action and strategy - defend the skies now!

Version History Bug Fix 1.6.8 3d ago Bug Fix 1.6.6 Sep 10 Chat System
SkyTank event rewards are now sent via in-game mail
Optimized announcement pop-up display
Improved the visual effects of shop page button UI text 1.6.5 Jul 15 Ban cheating players
Optimize the profanity filter word list 1.6.4 Jul 6 Bug Fix 1.6.3 Jun 30 Added sound effects
Added blocked words filter system
Added new bullet effects for all agent weapon skins
Improved flamethrower skill interaction with invisible units
Chips now auto-sort by quality after synthesis
Increased name length limit to 12 characters
Optimized number display format- 1K - 1M - 1B - 1T
Rocket Tank- replaced explosion range bonus with range increase
Missile Tank- replaced range bonus with explosion range increase
Reduced power of red military gear and gear sets
Fixed bugs 1.6.2 Jun 17 • Main Story & Elite Stages expanded to Stage 410
• Dungeon Stages expanded to Stage 41
• Armament Competition expanded to Stage 2000
• Added Elite Fund
• Expanded Growth Fund and Chapter Packs
• Equipment level cap increased to 410
• Significantly increased base stats from Armament upgrades
• Increased the base values of Attack, Gold, and HP Chips
• Added Mail and Announcement systems
• Leaderboard data reset and refreshed
• Added player profile inspection feature 1.6.1 Jun 8 Optimized the guaranteed reward rules for the Blaze Gift event: the guaranteed grand prize has been changed from 1 of 4 random rewards to an Agent skin only.
Added a new item, “Crystal,” to the Blaze Gift event, which can be exchanged for all unit skins in the corresponding series.
Added a chance to obtain 2x and 5x rewards in the Blaze Gift event.
Optimized the tab UI for Starter Packs.
Increased the daily/weekly/monthly purchase limit from 1 to 3.
Bug fix. 1.5.7 May 22 Increase the difficulty of Stage 5.
Increase the card consumption required for upgrading combat units.
Modify the contents of the unit upgrade bundle.
Slightly reduce the difficulty of Dungeon 1.
Move the Auto Battle unlock condition from “win Stage 12” to “win Stage 5.”
Reduce the wait time for auto-selecting traits from 5s to 3s.
Remove the “level requirement met” prompt on the deployment screen. 1.5.6 May 14 Added Effect Unit on the Chip Reset page
Removed the Purple Card Upgrade ad prompt
Adjusted the Ad Removal Weekly Card to an Ad Removal Monthly Card
Removed the Power Pack placement
Increased the limited purchase time for the Unit Upgrade Pack to 12 hours
Added Patrol Sweep guidance
Added Unit Upgrade guidance
Increased the agent’s initial firing speed
Replaced the battle BGM 1.5.5 May 9 * Adjusted stage difficulty
* Balanced combat unit strength
* Added enemy unit encyclopedia
* Added recommended clear squads
* Added option to upgrade purple cards during battle
* Increased gold rewards in daily dungeons
* Added Power Pack
* Added Ad Removal (Weekly Pass)
* Added privilege card renewal feature
* Added prize pool switching for weekend limited-time chips
* Added preview of agent skin skill effects
* Bug fixes 1.5.3 Apr 24 Balance adjustments for Main Story, Elite, Dungeon, and SKYtank stages.
Added auto-challenge next stage feature to the Arms Race event.
Increased the strength of laser-type combat weapons.
Added a feature to edit equipment set names.
Added new avatars and avatar frames.
Experience and performance optimizations. 1.5.2 Apr 15 Reduced difficulty for levels 1–10
Optimized aircraft altitude display on widescreen phones
Increased ranking score rewards for the SkyTank event
Added 5 seconds of invincibility after reviving in levels
Optimized combat performance
Added the Beacon Gift event
Added new agents, weapons, and unit skins
Bug fixes 1.5.1 Mar 27 - Fixed payment-related issues
- Fixed an issue where the No Ads feature could become inactive
- Fixed an issue where coins would occasionally stop increasing during battles
- Fixed an issue with abnormal difficulty of the Anglerfish Boss
- Reduced the difficulty of Stage 1 Boss
- Improved combat experience, with acceleration phases occurring earlier
- Fixed an issue where drones could not return after being knocked away by missile tanks 1.4.5 Mar 17 Fixed bugs
Reduced level difficulty
Optimized some tutorials 1.4.4 Mar 14 Add “Arms Race” gameplay mode.
Fix the bug where the Electromagnetic Tower cannot attack.
Fix the first purchase issue on iOS.
Fix the crash issue in the SkyTank event.
Optimize the leaderboard display.
Optimize game performance. 1.4.3 Mar 6 Fix the issue where the game fails to load properly. 1.4.2 Feb 21 1.Added Elite Stages 51–110
2.Added player clear list display for stages
3.Added collection preview to Chip Chests
4.Reduced Main Stage difficulty
5.Adjusted unlock order of unit upgrade card skills
6.Instance 1 now unlocks after clearing Main Stage 10
7.Greatly increased stage clear chest rewards
8.Fixed several battle-related bugs
9.Reduced difficulty of unit and equipment upgrades 1.4.1 Feb 14 Added main levels 51-110
Added dungeons 6-10
Fixed the issue with SkyTank ranking rewards not being claimed properly
Other balance adjustments
Increased the number of revives in the tutorial levels (1-10) to 3 times 1.3.21 Feb 4 Bug Fixes:
Fixed the issue with the cumulative count error in the weekend chip lottery event.
Fixed the issue with reward anomalies in the ranking settlement for the SkyTank event.
Performance optimization. 1.3.19 Jan 30 Add Chinese, French, Japanese, Korean, and Russian.
Bug Fix 1.3.16 Jan 15 -More thrilling core combat experience
-UI and art improvements
-Bug fixes 1.3.15 Jan 9 Balance unit strength
Lower the difficulty of mainline elites and dungeons
Add agent talent development
UI optimization
Bug fixes
Adjust chip chest pricing
Adjust leaderboard first-clear rewards 1.3.10 12/30/2025 Bug Fix 1.3.2 12/16/2025 Added Skytank event gameplay
Added quick stage jump
Added auto-battle feature
Added recommended affix suggestions
Added option to hide floating damage numbers
More types of low-rarity chips are now available
Increased coin rewards from clear chests
Reduced global rewards for Main Elite Leaderboard
Rebalanced Main Stages 1–50
Reworked Elite Stages 1–50
Rebalanced Dungeons 1–5
Adjusted skill power balance across all combat units
Increased passive affix strength for all combat units 1.3.1 12/12/2025