By Noyon Rahman · Updated August 2026 · Reviewed for accuracy against the live game
About Asteroid Blaster
Asteroid Blaster is a love letter to Asteroids, the 1979 vector arcade game that dropped players alone into space against a screen full of tumbling rocks. The premise is timeless: drift through open space, line up your cannon, and reduce every asteroid to dust before it does the same to you. The signature twist is splitting — big rocks shatter into smaller, faster ones, so clearing a field is never a single clean shot. This version adds the conveniences the coin-op never had: shield, rapid-fire, and spread-shot power-ups that sometimes drop from shattered rocks, three lives with a moment of protection after each hit, and wrap-around play where ships, bullets, and rocks all slide off one edge and reappear on the other.
How to Play Asteroid Blaster
Rotate your ship with the Left and Right arrows or A and D, and press Up or W to fire the thrusters. The ship glides with realistic inertia, so use short thruster bursts rather than holding the key down. Press Space to shoot; your bullets wrap around the screen too, so you can fire off one edge and clip a rock sneaking up behind you. Asteroids come in three sizes, and destroying a large or medium one splits it into two smaller rocks, which are worth more points. Clear every rock on the field to finish the level — the next one starts with a bigger, faster swarm. Colliding with a rock costs one of your three lives, though a glowing shield power-up can absorb a single hit if you grab it in time.
Tips & Strategies
- Never fly in a straight line while rocks are on screen — a gentle curve keeps you clear of your own debris.
- Blast the large rocks first: they are slow and easy to hit, and once they split you can mop up the pieces quickly.
- Use short thruster pulses instead of holding the key — a drifting ship is far easier to aim than a speeding one.
- Shoot off the edge of the screen on purpose; wrapped bullets hit rocks that are closing in behind you.
- If a spread-shot power-up drops, grab it — three bullets at once turn a crowded field into a quick cleanup.
Frequently Asked Questions
Why do the asteroids split when I shoot them?
Splitting is the heart of the game. Every large or medium rock breaks into two smaller, faster rocks when destroyed, and only the smallest rocks vanish for good. You finish a level by shattering the entire field down to nothing, which keeps the action frantic right to the end.
How many lives do I have?
You start each game with three lives. Colliding with a rock costs one life and resets your ship to the centre of the screen with a short moment of protection. If you collect a shield power-up first, it absorbs that single hit for you instead.
What do the coloured power-ups do?
Shattered rocks occasionally drop one of three power-ups: Rapid Fire speeds up your shooting, Spread Shot fires a three-way volley, and Shield wraps your ship in a protective glow that soaks up one collision. Each effect lasts until it is used or its timer runs out.
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