Boulder BASE: Sci-fi Story TD

In-app purchases
2.9
90 reviews
10K+
Downloads
Content rating
Everyone 10+
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About this game

It started like any other day. Until… An armada of hostile machines appeared in the sky.

The fate of humanity is in your hands. Are you ready to master tactics, build an unbreakable base, and crush your enemies in both the epic story campaign and intense real-time PvP battles? Earth is on the brink of destruction. Will you be the one to save it?

Key Features:

🔥 Over 10 years of continuous development
🚀 Epic sci-fi story in a 100-year distant future
💥 Real-time strategy (RTS) combining base building, defense & attack
⚔️ Intense real-time PvP battles
🤖 Challenging singleplayer campaign against advanced AI
📖 700+ story-based missions
🦸 3 unique heroes with upgradeable abilities


🛡️ BUILD & DEFEND
Become a master of defense. Design an unbreakable base with 12 types of weapons and boosters, and lure robotic invaders into deadly traps! Your tactical layout is your greatest weapon.

🗺️ PLAN & CONQUER
Unleash your inner tactician. Explore new territories, expose the enemy's weak points, and lead your troops to glorious victory on the battlefield.

🚀 UPGRADE & DOMINATE
Turn your army into an unstoppable force. Unlock powerful weapons and troops, upgrade them to the max, and unleash their devastating power to completely dominate your enemies.

⚔️ YOUR BATTLE, YOUR CHOICE
Will you fight the relentless AI-driven armies in a challenging single-player campaign, or will you prove your superiority by crushing other players in intense real-time PvP battles?

🦸 CHOOSE YOUR HERO. SHAPE THE BATTLE.
You don't fight alone. Command one of 3 unique heroes and unleash their game-changing abilities. Will you decimate foes with Miss Hit's powerful shots, freeze them with Ice Ace's cryodrones, or engulf them in Sand Anomaly's deadly sandstorm?

📖 700+ STORY-BASED MISSIONS
Your epic journey unfolds across 700+ unique missions. Each mission will push your tactical skills to the limit, rewarding you with critical resources, new technologies, and crucial pieces of the story.

🌌 UNCOVER AN EPIC SCI-FI STORY
This is more than a war—it's a mystery. Immerse yourself in an epic sci-fi universe, over 10 years in the making. Journey to a distant planet and unravel the dark truth behind the invasion. The answers are waiting.

❤️If you love strategy games with a deep storyline, Boulder BASE is a must-have for you!

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⚔️ JOIN THE FIGHT ON DISCORD
Share your feedback, ideas, or battle stories — we’re building Boulder BASE together. 💬
👉 Tap Game Settings > Discord in the app, or join directly here: https://discord.gg/QuEGSNfd
Updated on
Sep 24, 2025

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.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

2.2
81 reviews
Samson Ayomide
August 18, 2025
Really fun gameplay with lots of ways to upgrade your army and defense. The graphics are smooth and I like how each warrior has strengths and weaknesses. Wish there were a few more maps, but overall amazing!”
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Richard Nate
August 17, 2025
Absolutely hooked! The mix of tower defense and real-time strategy makes this game stand out from the usual mobile RTS. Building up my base and clashing with other players feels so rewarding. Definitely one of the best PvP games I’ve played!”
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Dan Michael
August 18, 2025
Finally, a strategy game that actually feels strategic! You can’t just spam troops you really need to plan your base defense and army combos. PvP battles are intense, and crushing enemy bases is so satisfying.”
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What’s new

psst.. don’t worry, we’re still grinding! 😎

• tons of new stuff! ✌🏽
• new missions = new fun 😎
• fixed loads of bugs — the game’s smoother than ever 💪🏽
• and the best part… we’re cooking up a massive project — a brand new story that’ll change everything! 🤩