About Orbital Shield Defense
Orbital Shield Defense is an original 360-degree radial space shooter built with pure HTML5 Canvas and Vanilla JavaScript. As the commander of a deep-space planetary station, your mission is to rotate an energy shield perimeter to intercept and destroy hyper-velocity asteroids and rogue orbital missiles.
How to Play
Rotate your shield around the central station using Left/Right arrows or A/D keys. Press Spacebar or tap the FIRE PLASMA button to launch targeted energy pulse cannons at incoming threats.
Strategy & Tips
Keep your shield aligned with clusters of fast-moving debris. On Hard difficulty, asteroids spawn from unpredictable orbital angles; prioritize fast-moving red meteors before targeting slower iron chunks.
Frequently Asked Questions
Is Orbital Shield Defense free to play?
Yes, it is 100% free with no downloads required.
Does it save my score?
Yes! High scores are saved automatically in your browser.