A downloadable tool for Windows and macOS

Buy Now$6.99 USD or more

Forum: Topic

Fixture Editor is advanced physics fixture editor for GameMaker: Studio. You can built any shape for your physics body without any restrictions and easily add it to your game!


  • Better than built-in fixture editor!
  • Any size, shape and complexity of figure.
  • Both concave and convex.
  • Any number of points (even more than 8!).
  • Both clockwise and counterclockwise.
  • Any number of sub-fixtures!
  • Optimized, clean and commented code.
  • Perfect work on all platforms - Windows, Mac, Linux, Android, iOS and other.
  • Technical support for all who purchased.
  • And even more.


You need intermediate knowledge of GML to use.

Please write a review if you like the asset and tell me your suggestions for improvement. If you found an error in my code or my English, please contact me ;)

My other assets! Physics rope, liquid simulation, textured terrain, custom savegame system, day night cycle, breakable physics objects, shaders and more.


Buy Now$6.99 USD or more

In order to download this tool you must purchase it at or above the minimum price of $6.99 USD. You will get access to the following files:

FixtureEditor-Win.exe 2 MB
FixtureEditor-Mac.zip 4 MB


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This is simply the best add on that Game Maker has. I've purchased this on GM2 Marketplace. It's such a shame that Yoyo Games do not have this functionality. It's such an important feature especially if you're working with physics engine and using object collision. Without this you can only work with either square or circle shaped assets. Whole application was a big disappointment for me until I found this tool. Many thanks.


Wow! - your tool is an absolute life-saver! - Well worth the measly asking price! - you've saved me a *massive* headache, firstly in trying to build a true physics shape for my concave ship, then I tried to create detailed levels for my physics game, and your tool turned a detailed, HUGE level with lots of contours into just 40 polygons - absolutely LOVE it, now my project is running at 1,600+ FPS (from 600+ originally) on my dev machine, meaning it's obviously going to run over twice as smoothly as before, on lower spec machines, so thank you...  :)

The only thing I'd ask for via an update would be, as others have said, to output the GML code with "*image_xscale" and "*image_yscale" modifiers for the x/y point values in the code, as I'm using lower res images, blown up, for my level templates, so I'm having to manually add this to all lines...

To not have to manually add these to the code, selectively, would make the tool AMAZING, and I'd even be willing to pay more to get this feature, so that I can easily create more levels...  :)

Many thanks again!


First off: Great tool!

Are these versions identical? https://marketplace.yoyogames.com/assets/4275/fixture-editor 

Or is one more up to date?