Bunker Defense: 100M Survival

Contains adsIn-app purchases
6.74K reviews
Content rating
Everyone 10+
100K+
Downloads
Content rating
Everyone 10+
Fantasy Violence
In-Game Purchases (Includes Random Items)
Learn more
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About this game

Can you stop 100 million enemies? ⚔️
The strategic tower defense game where you stop endless waves of enemies!
Test your strategy and luck in Bunker Defense.

🧱 Defend the Bunker
The last bunker at the edge of the universe. No one gets through.
You are the only line of defense against the relentless tide of enemies.

🎲 Strategy Is Your Weapon
Charge in? Snipe? Call for support fire?
Deploy a variety of units to build your own frontline.
Every unit is armed with flashy skills and unique abilities!

📈 Random Upgrades That Change With Every Level
Units grow stronger with every enemy defeated!
New upgrade options appear with every level up!
Luck is a skill too!

👾 The Ultimate Boss Arrives
Ordinary troops are nothing but ripples.
Elite units and boss-level monsters charge in relentlessly.
Your squad combination turns the tide of battle.

⚙️ Post-Battle Farming Time
Equipment upgrades, unit growth, strategy overhauls.
Preparation for the next battle is essential.

Join Bunker Defense right now!
Stake your skills and luck to stop 100 million enemies.
Every path to Allied HQ is a battlefield.
Stake your skill and strategy — become a legend of the universe! 🌌

Customer Support: bunkerdefense@teamsparta.co
Terms of service: https://rocketdan21.blogspot.com/2025/03/terms-of-service.html
Overwhelming Horde! Strategic Tower Defense
Updated on
Sep 3, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    App activity, App info and performance, and Device or other IDs
  • This app may collect these data types
    App activity, App info and performance, and Device or other IDs
  • Data isn’t encrypted
  • You can request that data be deleted

Ratings and reviews

6.58K reviews
Raj1j3b
March 30, 2026
Game forces you to get other turrets because the devs can't add in more depth to play as you want. Aka super level the basic turret not possible. Simple thing that either determines if you are a 'Copy and Reskin' of this game genre. If the generic is what your looking for then this isn't that bad actually. But there are better versions
1 person found this review helpful
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Teamsparta Inc.
March 30, 2026
플레이해주셔서 감사합니다. 기본 터렛 육성 관련 불편을 확인했습니다. 제안 사항은 개발팀에 전달하겠습니다. 감사합니다.
Dick Fuchs
January 5, 2026
I've been playing the game since launch, and overall it's a fun game. However, having re-buy VIP every 30 days is dumb. Also, the enemies start getting hard to kill very quickly. A very slow grind which is annoying. Overall, the events in the game are fun and interesting, but having a time limit per level is frustrating. You can hold off the enemies, but run out of time and you lose. Very frustrating. All in all, decent game, but needs some optimization.
10 people found this review helpful
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Teamsparta Inc.
January 8, 2026
오랜 기간 게임을 플레이해 주시고, 솔직한 의견을 남겨주셔서 감사합니다. 남겨주신 내용은 플레이 데이터와 함께 참고하여 향후 개선 방향을 검토해 나가겠습니다. 보다 쾌적하고 즐거운 플레이 경험을 제공할 수 있도록 지속적으로 살펴보겠습니다.
Duhbrickashaw Rex
November 19, 2025
Enough with the forced tutorials. Especially if you're going to scale the mobs way up to the point where they're practically unkillable, the gamer needs a chance to customize their loadout. Everybody's played this game before under a bunch of different names. We already know our way around. Tutorial needs to be skippable. Game seems like it will be fun after the long, forced tutorial. Starting at a 1-star, because of the complete lack of consideration for the gaming experience at the start.
18 people found this review helpful
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Teamsparta Inc.
November 19, 2025
Hello! Thank you for sharing your thoughts. We understand that the mandatory tutorial can feel long, especially for players already familiar with this genre. Your feedback about adding a skip option and improving the early experience is valuable, and we’ll review it for future updates. Thank you for your helpful input.

What’s new

- Added the new Minion: Mini Stormship
- Added the new Transcendent Unit skin: HotDogragoon
- Unit upgrades now increase unit damage
- Added Engineering Bay effects and Refining descriptions
- Improved probability details and fixed effects remaining in stages