Score
0
Wave
1
Lives
❤️❤️❤️
Best
0
Live Demo 👾

Space Invaders

Arrow keys to move · cannon auto-fires!

Arrow keys to move · cannon auto-fires!

How to Play

Goal

Destroy all alien invaders before they reach the bottom. Clear each wave to advance — formations grow larger and faster as you progress!

Controls

  • ← → Arrow Keys (desktop) or ◀ ▶ buttons (mobile) — move left/right
  • Your cannon fires automatically — just focus on dodging and aiming!

Wave Progression

  • Waves 1–3: diagonal corner formation, no shooting — learn the basics
  • Waves 4–5: larger formations, aliens start shooting back
  • Waves 6–7: 2-row formations, new alien types appear
  • Waves 8–9: 3-row formations, another new type
  • Wave 10+: full invasion grids!

Secret alien 👀

Each wave hides one impostor — a different emoji that slowly pulses. Shoot it for +75 bonus points and a ⚡ rapid fire power-up drop! The impostor emoji changes every wave.

Mystery UFO ⚡

A 🛸 UFO flies across the top every ~12 seconds. Shoot it to drop a ⚡ token — collect for 8 seconds of rapid fire (+100 pts).

Gift 🎁

A 🎁 gift floats across the middle of the screen every ~9 seconds. Shoot it to drop a 🎁 token — collect for 8 seconds of double-row shot (+80 pts).

Scoring

  • Higher-row aliens are worth more points (🦠 10 → 👾 30)
  • Remaining aliens speed up as their numbers dwindle
  • You have 3 lives — getting hit costs one
FAQ

What is the Live Demo?

Before you start, an AI cannon plays automatically in the background so you can see the game in action.

Is my best score saved?

Yes — your best score is saved automatically in your browser's local storage and persists between sessions.

Can I play on mobile?

Yes! The D-pad appears automatically on small screens. Hold ◀ or ▶ to move — the cannon fires itself.

Why do aliens speed up as I kill them?

As fewer aliens remain they move faster — a classic Space Invaders mechanic. Clearing a wave also raises the base speed for the next wave.

When do aliens start shooting?

Aliens don't shoot in waves 1–3 — perfect for learning. From wave 4 onward they'll fire back, with increasing frequency each wave.

What is the 🛸 mystery UFO?

A secret UFO that flies across the top of the screen roughly every 12 seconds. Shoot it and a ⚡ power-up drops — move into it to activate 8 seconds of rapid fire!

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