OpenRA

This isn't an exclusive club.

If you submit patches that make something better, I'll gladly review (and once we get whatever inevitable issues there are ironed out, accept) them -- whether they affect the editor, game code, or even the core engine.

Nothing is off-limits -- all you need is a ...

Windows only? :D

In that case I would prefer to add the functionality to the cross-platform OpenRA.Editor.exe instead.

I don't think I am well embedded enough to help with anything official, unless of course they want me to which I gladly would help. But also when it comes to git, I'm clueless ...

Hoping to add yml support and a basic wrapper for making units that have some special functionality, I just wish the developers would add a package format for mods.

Awesome. What do you mean with package format for mods? There is a mod.yaml which defines everything.

I mean the ability to ...

Working on an IDE for everything moddy. I already started a SHP editor, but moving it into a IDE style format based on my previous work in Garry's Mod.

Previous work:

http://account.gmservers.co.uk/gide_15.png

SHP Editor:

http://account.gmservers.co.uk/shpeditor.png

Conversion to an ...