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About Planetary Siege

Welcome to Planetary Siege, a thrilling 3D tower defense game set on randomly generated planets! You have to defend in all directions in this tower defense game like no other! Survival depends on strategy, precision, and quick thinking as you build and defend mining operations against relentless meteor storms. Build turrets, defend your mining post, and extract resources in an intense launch at the end of each mission.

Key Features

🌍 Defend Unique Planets

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Every mission takes place on a new planet, with black holes around it that spawn in meteors

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Adapt to varying layouts and challenges, making each playthrough a fresh experience.

🛡️ Strategic Tower Placement

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Deploy powerful towers to protect your miners and storage depots from devastating meteor strikes.

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Each tower has unique abilities, allowing for countless defensive strategies.

🌌 Resource Management Meets Defense

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Balance spending on defense and miners - get as many resources as you can but don't go too far without extracting or you'll lose everything!

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Extract resources and launch them into space during the intense Final Rush, a chaotic last stand against overwhelming meteor waves.

🚀 Infinite Replayability

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Procedurally generated planets ensure no two games are the same.

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Strategize around resource node placement and evolving meteor waves to perfect your runs.

Can you survive the hostile planets, extract their resources, and escape with your haul? Or will the meteors wipe out everything you’ve built?!

Wishlist now and prepare for a planetary tower defense experience like no other!

Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.

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