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!

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PlatformsWindows, HTML5
Rated 4.6 out of 5 stars
(8 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: 2.7 MB


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Quite fun. Defender with intuitive controls ^^

Bug?: had a crash on wave/level 15 or so after 2 or 3 consecutive hyperspaces. 

Feedback: The game could ramp up the difficulty faster (or at least keep spawning tricky enemies during the whole level, not just at the beginning). This run seemed like it could last forever and I was never short of lives even though I did lose several. Managing bombs were more fun, those were well balanced :)

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 )