https://www.free-stock-music.com/

This is a big royalty free / creative commons music (CC-BY) library categorized by genre and mood. You can use CC-BY music in your games as long as:
1. Put the music title and artist in your game credits.
2. The author doesn't have additional conditions for using his music in games and apps. Check authors website for that.

I'm finally giving away the drum samples I made from my nintendo ds. I think the raw recordings are in there too. And the second link is a bunch of drum loops from the DS Drums series I produced. I'm using gumroad to host but it's all free. Let me know if you use any of it!

https://bluechameleon.gumroad.com/l/dsdrums 

https://bluechameleon.gumroad.com/l/dsdrumloops

Also adding mine here:

Gnarly metal scrapes, impacts, and friction rich in ultrasonic content that's great for sound design

https://itch.io/embed/2561808

Ultra hi-rez EMF interference recordings that make excellent source material for SciFi sound design

https://itch.io/embed/2099196

Quirky, organic percussion one-shots

https://itch.io/embed/1846700

22 multi-sampled patches created on the analogue Teenage Engineering POM-400 synth

https://itch.io/embed/1844442

Free complete TR-707 drum kit

https://itch.io/embed/1845232

Around ~250.000 game sounds free to use in all non-commercial projects: https://www.weloveindies.com/en :)