Personally, I’m a huge fan of Hollow Knight, Ori and the (Blind Forest/Will of the Wisps), and Kingdom Hearts. Orchestral soundtracks are just something else…
Ori and the Blind Forest’s ost is phenomenal.
I think all of the Supergiant Games have great soundtrack. Transistor was what got me into their games, and it was the soundtrack that caught my attention first.
TUNIC, FEZ, Nier Automata, Outer Wilds.
I also have a soft spot for Paper Mario and TTYD, those soundtracks are full of bops
Indie games in general have great OSTs, MGS:R and Persona (and SMT in general) are obvious popular picks.
The World Ends With You is less mainstream (with one of the few gripes being the lack of boss-specific themes, at least in the DS original I played - but it makes up with the diverse overworld and normal battle themes), as is Etrian Odyssey.
I think orchestra is mixed, it’s either the best fucking tracks ever (often when mixed with electric guitar), or they kind of blend with other orchestral tracks I know and don’t end up being unique enough.
Hollow Knight
Omori
Doom 2016 and eternal
Mario odyssey
Terraria
Resident evil 4
Deathloop
Bloodborne
Nier Automata
Spectre tourment
Crypt of the necrodancer
Amnesia a machine for pigs
Metroid prime
Persona 5
Guilty gear strive
Undertale
Cuphead
These are all of my favorites personally. Omori or hollow knight being the best.
I second Omori so damn much. One of the only games that could bring me to tears.
Chrono Trigger
Final Fantasy 6 (the opera aria was played at my wedding)
Castlevania 3, specifically the six channel Famicom version
Castlevania: Symphony of the Night
I’m old, if you couldn’t tell
All the soundtracks Darren Korb makes for Supergiant. Hades resonates more with me as it’s the one I’ve played the most, but I’m also a huge fan of Transistor’s.
The Nier Automata OST is perfection. Almost every single track is memorable and lovable, I often relisten the whole ost just for fun
I haven’t finished the game yet, but Journey’s OST is simply amazing.
NieR: Automata
The Weight of the World
Halo CE has some real bangers (Devils…Monsters, On A Pale Horse, Covenant Dance, Under Cover of Night). Blow Me Away from Halo 2 has some amazing guitar riffs. The Starcraft: Mass Recall mod adds a lot of great music from other games/artists to its cutscenes. Starcraft Terran 1 goes METAL is probably my favorite out of those.
Several OSTs that have stuck with me through the years:
Both the Nier games have amazing soundtracks that I listen to frequently.
Kena: Bridge of Spirits is also great although I don’t really listen to it on its own. It really makes the game feel much more impactful while playing.
Nier automata has a great soundtrack, i haven’t played the newer one yet, but Drakengard 3 has some great songs on it, if you haven’t played it its meant to come before nier world lore wise.
Also gotta give a shoutout to World of Warcraft, got some massive nostalgia from that soundtrack
I actually got Drakenguard 3 running on my steam deck recently, it runs surprisingly well. I could immediately tell the game was gonna have great music based on the opening animation.
I find Nier replicant is good only after you make it past the first one or two hours. Too many fetch quests for me.
I will say drakengard 3 was one of the grindiest games ive played haha, dont wanna spoil anything though so thats all ill say. But its worth it the story is good if you like yoko taros type of storytelling. Theres a 60 fps patch i used but idk if steam deck is good enough for that, my old pc could barely handle it at 60fps with an i5-6600k and rx480
OST’s are my JAM!
Ori is a classic. - It’s equal parts haunting and jubilant.
Death Stranding - Don’t be so serious. Every song is a masterpiece.
Overwatch - It’s just good fun
Witcher 3 - hey lele lelele lele lele ley!
Cyberpunk - Dark, broody, and invigorating
Divinity Original Sin 1 and 2 - Absolute fantasy. If you want a VGM OST to plan your d&d session to, this is a great option
Red Dead Redemption 2 - Maybe it’s partly because Arthur Morgan’s story is so incredible but this soundtrack gives me the shivers. “May I stand unshaken… Amid, amidst a crash of the world?” omggg give it to me D’Angelo
There’s tons more I’m missing here. But these ones stand out to me.
Edit: Formatting
Witcher 3
🎶PAM PA RAM…🎶
Red Dead Redemption 2
I finished that game for the first time over a year ago, and still can’t listen to ‘That’s The Way It Is’ without feeling like I’ll never be happy again.
Need to queue up the house building theme after that one
Or just play That’s The Way It Is over and over and over and over again until the world is a small, bleak place full of sadness and disappointment.
I love the work put into The Witcher 3’s OST, especially around some of the old english such as in “Whispers of Oxenfurt”. Mikolai Stroinski, Marcin Przybylowicz and others really nail that fantasy vibe.
I’ve been listening to some choice tracks from Final Fantasy XIV, mostly from the big epic finales. I probably should be excited for XVI, but I just reaaally don’t trust the action JRPG setup.
However, an even better soundtrack to me is Ori and the Blind Forest, as you mentioned - it has some epic bangers to it, but it’s also an incredible soundtrack even for the calm, peaceful tracks playing while exploring.
Credit to Nier Automata for what it’s worth…there’s some tracks I really like in there on their own, but…I honestly feel like those really good tracks just don’t often fit the gameplay. They have some hard-hitting vocal tracks playing while 2B is wandering the city or standing around, and it really warps the feel of the pacing. I mention it because it’s just an interesting example to me of “good music” not actually fitting as a soundtrack.