Neat Game Maker Engines

[fruckert]

I've decided that starting a list of neat Game Maker stuff would be a good idea.
I don't claim that any of these are mine, by the way.
All engines herein are the property of their respective owner.

Format will be as follows:
Name with link - Difficulty (Version)
Description, and what you can do with it.
Other Resources:
Linkity link link

GAMEPLAY

The Zero Engine - Intermediate (GM7 Pro, lite is easily available from my understanding (depends on the functions that you use))
The Zero Engine is probably the most complete engine on the GMC right now. It's what's currently powering Kyoob.
It works off of the Finite State Machine concept.
It's kind of a hard topic to discuss briefly, so just download the example and take a look at it's scripts.
Other Resources:
Charas! Yes, there is a script in it that loads RPGMaker character formats. So, basically you can just make a character in Charas (or sprite one yourself), and then load it into GM.
I'm also available for help if you want to achieve something

GRAPHICS

GMOgre3D - Advanced to Very Advanced - tutorials available (GM7 Pro)
GMOgre is a port of the very popular Ogre3D engine.
It's a fully functional 3D engine, with a small inclusion of Havok like physics (about a hundred boxes at once didn't slow me down, and I'm on a craptop).
It is, however, kind of difficult to learn, as it's basically another object oriented language wrapped up in GM.
A number of tutorials are available, however, on the site linked.
Other Resources:
Ogre specific resources are at the site above.
Sculptris is a free, lightweight sculpting application. You can make some impressive stuff with this.
Only problem that I've had so far is I can't figure out how to export things with their textures

Wannabe3D - Beginner to Intermediate (GM8 Pro)
W3D is exactly what it sounds like...a fake 3D engine. It achieves it's effect through drawing polygons on the screen in such a manner that it looks 3d.
Unfortunately, it doesn't like the camera being in angles that AREN'T straight down, so it's kind of limited in what you can do with it.
Other Resources:
N/A

SOUND

SuperSound - Beginner - (Pro)
Supersound is basically a powerful sound system.
It's what Spelunky uses.
There IS a .gex available, but it has a rather severe bug, in that it doesn't delete the temp folder.
So...use this.
Other Resources:
Musagi, an awesome music creator that's easy to use. Still need to know how to compose though
SFXR, "MS Paint for sfx"

More to come as I please.

[fruckert]

Updated with SuperSound and Wannabe3D.

[drenrin2120]

Musagi is awesome. Thank you for introducing this to me! I'm going to delve a little bit into the other things posted and report back later.

[fruckert]

The guy who made those actually has a lot of really cool free game creation apps.
Including a free modelling program that kicks ***.
I'll go add that stuff to the list.