This list of Free/Royalty Free samples was compiled from a few sources and reposted in few other places for people looking for resources for their projects/music/etc. so might as well post it here too, heh. Feel free to add to the list, though naturally it should be free/royalty free.

The #GAMEAUDIOGDC Bundle (Part 2, 16GB+)

The #GAMEAUDIOGDC Bundle (Part 3, 20GB+)

The #GAMEAUDIOGDC Bundle (Part 4, 30GB+)

52,261 free music samples

8458 free sound samples

3.5 gigs of Orchestral SF2's

A bunch of quality SF2's

GM Soundfont made specifically for vgm

2 gigs of sfx sample pack from boyss

2000+ samples from audio micro (requires email registration)

Genuine Sound Ware sound fonts

NTONYX sound fonts

free SFX from Psionic Games

The Open Bundle (alternates on Soundcloud, OpenGameArt)

SoundBible

Incompetech

DL-Sounds

DrPetter's sfxr and bfxr

99Sounds

pdsounds

Music by Marcelo Fernandez

Music by Eric Matyas

Sound Effects by Jesús Lastra

LabChirp

Music by James Opie

Adobe Audition DLC (10k+ sfx, music)

The Game Creators Pack by Jonathan So

Music Pack's by Bocuma

OpenGameArt

Music by Punch Deck

http://99sounds.org/ has been a great resource for me.

I have some free music on my site: http://www.marcelofernandezmusic.com/royalty-free-music/

Check my porfile https://jalastram.itch.io

Sysop-Delco, thank you very much for featuring my asset pack on here!

Very nice! 

I posted some free music and SFX a couple days ago too! Here you go: https://rhetoricsff.itch.io/debutante-musicsfx-pack-i

I have a whole lot of various sounds on my freesound.org page: https://freesound.org/people/DWOBoyle/

Hello guys, also check out PlayOnLoop, there are hundreds of 8-bit and 16-bit chiptunes on the Retro Game music category. Each track on catalog comes with a free downloadable edit. Cheers :-)

I was on trying to find a site something almostly like this descriptions, which can give me the wave or mp3 sounds in my game. Specially, I need few sci-fi sound bundles. If there would be any site, where I can search the sounds or noises, that I'll need!

I have a free coin & money sound library up on itch.io for anyone who'd find that sort of thing useful :)
https://shapeforms.itch.io/the-mint-coins-and-money-lite

Here's my contribution: https://freesound.org/people/jasonlee3071/

I don't know if this post is still active but here's mine https://railroadstudio.itch.io/royalty-free-music-for-video-games-and-animation

Thnaks for list!