I LOVE this game, the aestetics, and just everything else since i saw the very first trailer and bought it when it was just released back in 2014 (i think ?)... can we have a DLC with the "extra stuff" ? Like, the soundtrack, an artbook, and stuff like that ? please ?

Unlike Ether Vapor where the extras was on an external website and you get a link after finishing the game, AsteBreed features those in-game. After finishing the game the option should appear. Artworks, soundtrack, and even 3D model database.

I know about those options but what if i want, for example, to listen to it's music while i'm doing other stuff at the comp ? I mean, can i do that without always having to turn on the game ^^; ?

Oh, you can do that because all the musics included as Ogg amongst the game's files. It have even a loop data for gapless playback. :)

The new version (Definitive Edition) however only the PS4 version emulated ot converted, have the music coded in the ROM file thus can not be played without ripping it out first.

I'll look into that then, thanks for letting me know ^.^

You're welcome, shame the new version doesn't have the soundtrack in separate files. :)