# Protect & Defense Sci-Fi Cyber — Sci-Fi style Tower Defense > Sci-fi tower defense strategy game with alien invasion and strategic combat. (iPhone/iPad app by Viktor Letkov.) - Source: https://appshunter.io/ios/app/protect-and-defense-sci-fi-cyber/id6449759659 (this page in markdown: same URL + `.md`) - Developer: [Viktor Letkov](https://appshunter.io/developer/1150614773) - Category: Games, Strategy - Price: Free with in-app purchases - Rating: 4.49/5 from 45 App Store ratings · 22 written reviews indexed - Age rating: 9+ - Requires: iOS 12.0 · 149 MB - Languages: Arabic, Dutch, English, French, German, Hindi, Indonesian, Italian, Japanese, Korean and 9 more - Released: 2023-06-06 - Data updated: 2026-06-10 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/protect-and-defense-sci-fi-cyber/id6449759659/reviews.md ## What is Protect & Defense Sci? Near future. Alien Sci Fi enemies have breached our defenses. The war began. The earth is practically defenseless. All hope is for a hero who will lead the resistance. Thousands of enemy robots, tanks, planes, ships carry deadly weapons. You will need to fight back these professional warriors. Fighting such an enemy is not a toy. They can burst you like a balloon. Defend the planet like a medieval knight defending a royal castle. Protect & Defense: Sci-Fi Cyberpunk is a tower defense that is suitable for both experienced players and beginners. Commander, a fun gameplay awaits you. All towers and abilities are perfectly balanced. To win, you need to build new defensive structures or improve them. The support of artillery, aviation and other auxiliary bonuses will always come to your aid. All weapons have different abilities - some can damage multiple targets at the same time, others shoot slowly but deadly. Taking command, you will need to defend against many different enemies using a variety of tactical tricks. In the game, you can set up the towers for defence as you like. Features of the game: - Tower defence strategy td - Interesting gameplay - Many towers with different abilities - Bright and beautiful graphics - Beautiful levels - 3D We hope you enjoy our game! ## Key features - Tower defense strategy - Engaging gameplay - Multiple towers with unique abilities - Bright and beautiful 3D graphics - Varied enemy types - Tactical placement of defenses ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | 1 250 | $2.49 | one-time | | 12 000 | $12.49 | one-time | | 500 | $0.99 | one-time | | 8 000 | $12.49 | one-time | | 3 000 | $4.99 | one-time | | 4 500 | $4.99 | one-time | | 27 000 | $24.99 | one-time | | 9 600 | $9.99 | one-time | | 6 750 | $7.49 | one-time | | 1 875 | $2.49 | one-time | | 750 | $4.99 | one-time | | 300 | $1.99 | one-time | | 1 650 | $9.99 | one-time | | 2 400 Special Offer | $9.99 | one-time | | 6 600 Special Offer | $24.99 | one-time | | 8 100 Large Special Offer | $24.99 | one-time | | 8 100 Large Special Offer | $24.99 | one-time | | 2 700 Big Special Offer | $9.99 | one-time | | 21 000 Large Special Offer | $49.99 | one-time | | 8 100 Large Special Offer | $24.99 | one-time | ## Recent user reviews (10 of 22) All indexed reviews: https://appshunter.io/ios/app/protect-and-defense-sci-fi-cyber/id6449759659/reviews.md ### 5/5 — Good tower defense game *2025-02-07* It’s fun to play. Good graphics and sound. My only complaint is most of the towers are useless. I finished the game with only ENERGY and POISON towers. Some adjustments could be made to make the other towers more useful. MORE LEVELS PLEASE ### 4/5 — Ну и когда ?! *2024-10-28* Спасибо авторам игры, но за елось бы узнать , когда продолжение и новые уровни ?!! ### 4/5 — Level 34 broken *2024-09-28* I upgraded the poison tower to max attack speed. Now level 34 won’t start (normal mode). It’s a shame writing a review is the only way to try to get support ### 2/5 — Pretty fun, but flawed *2024-08-02* This is a generally fun game, but it has some behaviors that make it really frustrating. Particularly, the targeting choices of your towers make no sense. A tower will ignore a nearly-destroyed creep that is much closer to the finish line, and choose to attack one that is way further back. So you watch creeps limp past your defenses for no reason and you lose lives that never should have been lost. I’ve enjoyed it, but it shoots itself in the foot with nonsense like that. ### 5/5 — Beautiful td *2024-04-04* Very interesting tower defence ### 3/5 — Molto bello, ma... *2024-02-10* Il gioco e' veramente fatto bene, per coloro che amano i Tower Defense. Peccato che ci sono pochi livelli da affrontare... Il gioco ti prende ma ti trovi in 2-3 giorni con l'amaro in bocca perche' vorresti continuare a giocare ma non puoi... livelli terminati. Con piu' livelli sarebbe un 5 stelle. ### 5/5 — Красивая графика *2023-12-09* Красивый и интересный tower defense ### 5/5 — Tower Defense *2023-11-17* Классный td ### 5/5 — Jau *2023-09-24* Sodele ### 1/5 — Шляпа, сделанная на коленке *2023-09-17* Да ## Frequently asked questions about Protect & Defense Sci ### What is Protect & Defense Sci-Fi Cyber? Protect & Defense Sci-Fi Cyber is a tower defense strategy game where players defend Earth from an alien invasion. You will command defensive structures and utilize their unique abilities to defeat waves of enemy robots, tanks, and aircraft. ### What are the key features of this game? The game features a tower defense strategy gameplay, many towers with different abilities, bright and beautiful 3D graphics, and interesting levels. Players can strategically place and upgrade towers to defend against various enemy types. ### Is this game free to play? Yes, the game is free to download and play. It includes in-app purchases and advertisements, which are common monetization models for free mobile games. ### Who is this game for? This game is designed for both experienced tower defense players and beginners. Anyone who enjoys strategy games, science fiction settings, and engaging combat scenarios will find this game appealing. ### What kind of enemies will I face? You will face thousands of enemy robots, tanks, planes, and ships equipped with deadly weapons. These professional warriors are designed to challenge your defensive strategies and tactical skills. ## Version history (last 5 releases) ### 4.0.2 — 2024-10-12 * Big balance changes ### 4.0.1 — 2024-09-27 * Big balance changes ### 4.0.0 — 2024-09-26 * Big balance changes ### 3.1.2 — 2024-08-21 * New tower upgrade system. You can further upgrade towers of the third level and higher. ### 3.0.2 — 2024-07-27 * New level * New bonus level ## Apps similar to Protect & Defense Sci | App | Rating | Price | Category | | --- | --- | --- | --- | | [Tower Defense Kingdom Realm](https://appshunter.io/ios/app/tower-defense-kingdom-realm/id1451012582) | 4.3 (23) | Free | Games | | [Tower Defense: Kindom Defense](https://appshunter.io/ios/app/tower-defense-kindom-defense/id6447021271) | 4.4 (56) | Free | Games | | [Defense Legend 4: Sci-Fi TD](https://appshunter.io/ios/app/defense-legend-4-sci-fi-td/id1588331753) | 4.4 (82) | Free | Games | | [Modern Defense HD](https://appshunter.io/ios/app/modern-defense-hd/id1467938161) | 2.0 (1) | Free | Games | | [Toy War 3 - Red Frontier](https://appshunter.io/ios/app/toy-war-3-red-frontier/id6444045762) | 4.2 (37) | Free | Games | | [Defense Legend 3: Furure War](https://appshunter.io/ios/app/defense-legend-3-furure-war/id1417881112) | 4.4 (156) | Free | Games | ## More apps by Viktor Letkov - [Tower Defense: Final Battle](https://appshunter.io/ios/app/tower-defense-final-battle/id1459903763) - [Tower Defense: Next WAR](https://appshunter.io/ios/app/tower-defense-next-war/id1464774374) All apps by Viktor Letkov: https://appshunter.io/developer/1150614773 --- *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.*