If you have time for some reading, here's a really great article from a few years ago that talks about licensing in video games and how complicated it can be (the first half of the article is really the only relevant part). Depending on what exactly you want to do with the music in/with the game, a developer could be looking at having to deal with more than one license. I imagine it could get expensive very easily.

[–] KingThrillgore@lemmy.ml 2 points 9 months ago* (last edited 9 months ago)

Pyrocynical used Midge Ure's cover of "The Man Who Sold the World" in a video covering Half-Life 2 or a mod of it, and that meant Midge needed a cut, the original writer David Bowie, his estate needed a cut, Kobalt Songs, who owns the rights for Midge's cover needed a cut, Warner Chappal, who owns the Bowie library needed a cut, ASCAP needed a cut, PRS needed a cut...

You only get a small fraction of who owns what off SongView. It's a removed. Pyro paid $24,000 for the sync rights. That's the budget for like five of his videos right there.

I wish this process was easier. Contacting a label's sync office is typically the start of the nightmare.