I am wanting to create some backing tracks for practicing to and as an example I'll use drums. I have tried using iZotope RX-8 Music ReBalance and it just sounds so muddy. I've tried SpleeterGui, same thing. I'll link some files below that are what I'm shooting for.

It looks like someone did it using, I guess that's Guitar Hero or something, I'm not really into games but if there were a way to extract stems from a game? I don't know. Any ideas?

 

you can find guitar hero multitracks online, maybe you can find what u are looking for

 

Stems of this track are on the russian brother site.
Just type:
"Tears For Fears Multitrack"

 

Oh man... JACKPOT!!!!! I have more files than I will ever be able to remix! Thanks for the tips! First song mixed my way and without drums Def Leppard - Foolin'