This one through the link is called "Haunted Lands" by Excilibrius.
An Old Sad Ghost: https://anoldsadghost.bandcamp.com/album/an-old-sad-ghost
Of course, Fief: https://fief.bandcamp.com/album/ii
Erang is always good https://www.youtube.com/watch?v=bBbEr8QrGaw To me there are 2 types of dungeon synth now. Theres the medievial stuff that came out of black metal/soundtrack, and there is the more expermental lofi synth stuff.
This is slightly better https://www.youtube.com/watch?v=GI4rvqZWZAk More traditional DS from Erang.
damn, I've been looking for something like this forever, electronic ambient with a fantasy vibe, this is doot doot skelly in all its glory
https://youtu.be/tjvQSTEnShc?t=1 I really like this album Ziggurath - Tales from Southern Realms. I don't listen to a lot of dungeon synth, but I enjoyed most of what I heard.
https://youtu.be/S0F2nX61FJ8
Frog concert. 🐸 It's p chill and has some good frog vibes
My fav two are
Örnatorpet for more ambient type
https://youtube.com/channel/UCXbAVv5DhJ1KTJJJAZv57YA
Fiendish Imp for the lo-fi dark chiptune type
https://youtube.com/channel/UCswi2BS4Aby3MrYR-AS7gig