One of the themes for the base sky island in Legend of Zelda, Skyward Sword makes me so nostalgic and melancholy every time I hear it.

i really like the soundtrack to the yakuza games

Do you know where to download these soundtracks?

I want to use it for video editing

My personal favourite soundtracks are Pokemon Emerald, Danganronpa (all 3 main games) and Persona 5. Got some great tunes in there that I can't help but to bop along to when I'm working.

Same as @SpiderHako Undertale has gotta be my favourite. https://www.youtube.com/playlist?list=OLAK5uy_l6pEkEJgy577R-aDlJ3Gkp5rmlgIOu8bc

ape escape 1 has best ost and either "coral cave" or "crumbling castle" being my favorite https://www.youtube.com/playlist?list=PL06360565CFC0FAC0

And don't forget about BioShock Infinite

I am a big fan of Dragon Quest's soundtrack. Okay, I only played DQ8 on 3DS and DQ11, but it's still amazing! The main theme never fails to give me chills.

@Rekkuza Same! I'm actually a massive fan of the series. I like almost all of the songs in DQ8 but if I had to pick the best one, I think the Dhoulmagus boss is the one.

This is an orchestral arrangement of the main Undertale theme:

Cave story ost, hands down.

Ni no Kuni has an amazing soundtrack.

https://m.youtube.com/watch?v=vnk41KJ9afM

My favorite track is the Atlantis 2 level of Glover. Classic game, good tunes.

Definitely Sweden from Minecraft, though Zelda's Lullaby from Ocarina Of Time is an honourable mention.

I think I already mentioned bloody tears from castlevania so I would say some of the gritty music from spec ops the line was pretty good. Also Silent Hill 3 rain of brass petals three voices edit

Despite being a Kirby fan, I'll say White Wafers from Return to Dream Land [Wii]

A Short Hike