Aye! 'm in!
I haven't done this in years, so I really look forward to go again. Compo, of course. In my spirit so-far of never using the same toolchain twice, I'll use Godot Engine this time. I haven't worked with it before, but I've spent the week going through some of the tutorials and it seems really pleasant. Scene inheritance is awesome!
This is my first entry using a "proper" game engine, so hopefully I'll be able to build something amazing!