About game
Defend the planet by constructing a custom war machine block by block to withstand waves of incoming threats. Planetary Defense forces you to dodge deadly comets while unleashing massive firepower against relentless invaders. You will manage a modular machine build where every piece of armor, laser, or bazooka dictates your survival strategy. Integrating economy modules allows you to stack cash during intense combat, fueling your ability to upgrade weapons on the fly. Each run consists of ten survival stages that push your reflexes and strategic planning to the absolute limit. You can merge identical components to unlock massive power spikes and fine-tune your rig for specific arena challenges. The thrill of crafting unique builds while dodging боевые дроны and avoiding crashing кометы makes every session distinct. Mastering the art of modular construction is the only way to stop the swarm of нло from destroying Earth. Play Planetary Defense for free directly in your browser with no download required.
How to play
Controls are minimal—action and strategy are not:
• Move left/right to dodge incoming fire and falling comets.
• Mobile: drag or hold your finger on the screen to move—while your finger is down, your weapons keep firing automatically.
How a level works:
• A level has 10 stages. Clear every wave and survive.
• Between stages, open the shop to buy new blocks for your machine.
• Merge identical blocks to upgrade them and gain a big power spike.
• Adjust your build to each arena: stack defense, invest in economy, or go all-in on firepower to find the strongest combo.
Features
- Merge System: Combine two matching parts to increase their tier and significantly boost overall damage output.
- Dynamic Economy: Install specialized modules to generate currency during waves, allowing for massive upgrades between stages.
- Custom Loadouts: Swap between defensive armor stacks or high-firepower glass cannon builds to counter specific enemy types.
- Stage Progression: Conquer ten increasingly difficult waves per run with randomized shop selections that keep every session fresh.
- Global Survival: Track your progress through diverse arenas that introduce unique environmental hazards and boss encounters.
Who is it for
Fans of arcade shooters and survival games who enjoy tinkering with complex build mechanics will find their match here. Casual players seeking quick, high-intensity sessions will appreciate the intuitive controls, while strategic thinkers will thrive on the challenge of optimizing their war machine for maximum destruction against cosmic threats.
Controls
Move ship
Drag or hold finger on mobile, or move mouse on desktop.
Shoot weapons
Automatic firing triggers continuously while your finger or mouse button is held down.
Manage inventory
Tap on shop blocks to purchase and drag them onto your machine to install or merge.
FAQ
How can I upgrade my machine in Planetary Defense?
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Between each of the ten waves, you can purchase new blocks from the shop and drag identical ones together to merge them into higher-level versions.
Is Planetary Defense free to play?
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Yes, you can play Planetary Defense directly in your browser without needing to download or install any software.
What is the best strategy for Planetary Defense?
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The best strategy involves balancing your economy modules with offensive firepower and defensive shields to adapt to the specific enemy waves in each arena.
