Planetoid is a side-scrolling shooter based on the classic arcade game Defender.

  • Zoom left and right destroying all enemies in your path
  • Rescue the humanoids from being abducted by Landers
  • Catch falling humanoids and return them to the surface
  • Use the hyperspace button to escape tricky situations
  • Deploy smart bombs to destroy all on-screen enemies

If you enjoy the web game please consider purchasing the Windows version for a small fee - it really helps me, but mostly importantly, have fun!

Follow me on Twitter

PlatformsWindows, HTML5
Rated 4.8 out of 5 stars
(4 total ratings)
AuthorBen James
Made withDefold
Tags2D, Arcade, defender, Pixel Art, Retro, Singleplayer


Buy Now£2.00 GBP or more

In order to download this game you must purchase it at or above the minimum price of £2 GBP. You will get access to the following files: 2 MB


Log in with to leave a comment.

So good Ben.

Super cool, congrats!

Absolutely superb.

Experienced a random crash (game locked up hard with mostly white screen) on level 2 just after using a smart bomb and trying to hyperspace in quick succession (FF 105.0 / Linux) but after playing again repeatedly cannot reproduce :(

Great stuff.

Awesome ! The only thing i miss is the SFX of the Engine which is not here, otherwise it's really juicy :) 

Looks really good and is really faithful to the original. Well done! This game is still too fast for me though, also faithful to the original ;-)

Simple but effective :) I really like the "space invaders" mood, but i need to train a little ( i always crash on invaders :c )