Letter Invaders

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What is Letter Invaders?

Letter Invaders is an arcade-style 2D shooter.

The letters are on the attack in a never ending advance. Can you align them into words so you can fire the main gun?

You and your ship are our last hope!

Who is Heavy Robot?

We build things, web things. We are a highly skilled and down-to-earth web development shop specializing in the technologies and practices that help bring your projects to life.

And we also like to build things on our own for fun. We hope you enjoy the fruit of our labor! Find out more about us on our website.


Main controls
Left & right arrow keys - move ship
Space - fire ship's gun
Enter - fire main gun (to destroy row with word)

Use the ship's gun to destroy letters and form words (3+ letters in length). Once word is formed, fire the main gun and destroy the entire row. Destroy all of the rows to advance to the next level.

Additional controls
Down arrow - pull letters toward ship
F key - Increase game speed
S key - Decrease game speed
+ key - Increase game volume
- key - Decrease game volume