AbraCalc

Laser Defense

Rotate your base turret and blast descenders before they reach you. Survive escalating waves!

Laser Defense Score: 0   Lives: 3
Aim and FIRE the laser!
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APA

AbraCalc. (2026). Laser Defense [Online calculator]. Retrieved from https://abracalc.com/game/laser-defense/

BibTeX

@misc{abracalc-laser-defense, author = {AbraCalc}, title = {Laser Defense}, year = {2026}, howpublished = {\url{https://abracalc.com/game/laser-defense/}} }

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How to play

  1. Rotate the turret with ↺/↻ buttons or the left/right arrow keys.
  2. Press FIRE or Space to launch a laser bolt along your aim line.
  3. Destroy each descending enemy before it reaches your base.
  4. Every enemy that gets through costs one of your three lives.
  5. Enemies spawn faster and faster — keep your aim sharp.

Use ↺/↻ or arrow keys to aim your base turret and press FIRE or Space to shoot lasers. Destroy the descending enemies before any reach your base — every breakthrough costs a life.

How it works

Laser Defense is a turret shooter. Your base is at the center (or bottom) of the screen and enemies descend from the edges toward it. You rotate a turret by moving the mouse (or swiping) and fire a laser by clicking or tapping. Destroying an enemy earns points; letting one reach your base costs you a life.

Enemies approach from multiple angles simultaneously in later waves, requiring quick target prioritization. Fast-moving enemies need to be led slightly -- aim where they are going, not where they are. The game ends when all lives are exhausted.

Laser Defense is a classic arcade shooter format that trains multitasking: tracking several targets at once while managing the firing rate and rotation speed of your turret.

Worked example

Clearing Wave 1

  1. Start the game and note the turret rotation controls (mouse movement or touch drag).
  2. Rotate toward the first visible enemy and fire.
  3. After each shot, check whether a new enemy has appeared on the opposite side.
  4. Prioritize the enemy that is closest to the base over the one with the highest point value.
  5. Continue until all Wave 1 enemies are destroyed.

Wave 1 cleared with all lives intact.

Common mistakes to avoid

  • Fixating on one enemy and ignoring others that sneak past from an unguarded direction.
  • Shooting at enemies that are far away when a faster enemy is much closer to the base.
  • Firing without rotating fully to face the target, causing shots to miss and waste the reload window.

Key terms

Turret
The rotating weapon you control; it fires a laser in whichever direction it is currently pointed.
Wave
A discrete group of enemies that appear together; each wave is harder than the last.
Lead
Aiming slightly ahead of a moving target so the projectile and target arrive at the same point simultaneously.

Frequently asked questions

How do I aim?
Rotate the turret with the ↺/↻ buttons or the left/right arrow keys, then fire.
What ends the game?
Letting three enemies reach your base depletes your lives and ends the game.