Is it still possible to submit Flash games to Steam? I don't know if that's possible... I do have a wrapper for .swf files that turns them into .exe:s...
Well, I'm sure the .exes will be accepted. How'd you do for the Perfect Balance release? I guess it just lacks unifying all of the games on a single launcher of sorts (or, maybe, you release each one separately?). I'll be keeping an eye regardless.
I recoded Perfect Balance Collection using Unity game engine so that is a native Windows/macOS/Linux exe. Also Drop Dead 3D is made using Unity, and I'm working on a big update to it and at least that's going to be released on Steam if it passes the reviews.