Defend your underwater coral reef from waves of human invaders in this fast-paced tower defense game. Deploy fish soldiers, strategically choose powerful upgrades each run, and unlock permanent enhancements to survive endless enemy assaults.






190+ iOS apps & games curated and reviewed
The best ocean defense td apps and games on iPhone average 4.4★ across 190+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 5.0★ (1) | Yes | No | May 2026 | ||
| 2 | Free | 4.2★ (20K) | Yes | Yes | Sep 2026 | ||
| 3 | Free | 4.6★ (8.4K) | Yes | Yes | Sep 2026 | ||
| 4 | Free | 4.6★ (5.2K) | No | Yes | Sep 2026 | ||
| 5 | Free | 4.8★ (1.2K) | Yes | Yes | Sep 2026 | ||
| 6 | $4.99 | 4.8★ (40K) | Yes | Yes | Sep 2026 | ||
| 7 | Free | 4.8★ (17K) | No | No | Sep 2026 | ||
| 8 | Free | 4.8★ (8.1K) | Yes | Yes | Sep 2026 |






Defend your underwater coral reef from waves of human invaders in this fast-paced tower defense game. Deploy fish soldiers, strategically choose powerful upgrades each run, and unlock permanent enhancements to survive endless enemy assaults.






Build and upgrade a single tower to defend against waves of enemies in this incremental tower defense game. Make permanent upgrades, unlock new areas, and compete in tournaments. Enjoy addictive gameplay with a vast array of strategic choices.




Lead your troops to victory in this fantasy tower defense game. Build, upgrade, and repair towers to defend against waves of enemies. Recruit and level up heroes to aid in your defense and save the kingdom.