Not sure if this has ever been made...or if it was it went unnoticed, I personally think this would be a neat idea for other SM Players to see what we (sim authors) are working on for them to play!
I'll start!
Blaze of Life- 403 Forbiddena (YES I STEPPED THIS 6 YEARS AGO BUT I WANNA RE-DO IT)
Buzzards- Orange Dust (Probably gonna collab with someone on this)
The Grey Tide- Outworld (Probably the most difficult song I'll ever step)
La Villa Strangiato- Rush (ALL OF IT) (Collab with Cedolad
)
Mr. Dark- From Rayman (Because I can)
Phoenix Wright ~ Objection- Magical Trick Society (Has some awesome parts which I can play with and stuff)
Ocean Gateways- Obscura (Obligatory badass metal file)
Planet Starlight- Hudson Soft (From Bomberman: The Second Attack!)
Ytse Jam (Yes. I'm stepping all of it because I can't make a decent cut)