Yes Oophoi has a large discography - Athlit is highly recommended as well as the Dreams set and The Dreaming of Shells for a good start.Just wanted to say it is great to read discussions talking about musicians I know nothing about - don't stop talking....
Mathias Grassow does have a huge discography - two of my favourites are Dissolution (very dense music) and True North with Amiri Baghiri.
you may also like Upuaut (with Oophoi and Baghiri), Sphere, Space and Eclipse.
I'll have to check those out. Oophoi is another one whose huge discography is something I've only scratched the surface of. I do have Upuaut and like that one quite a bit.
I must also also add Celestial Geometries and Signals From The Great Beyond to the list of Oophoi discs to check out. In my opinion these are essential recordings to have in anyones collection