The list is really starting to build up, though I've had to separate Secret Maryo since it now requires OpenGL. Personally, I believe in how Battle Tanks handled it: Takes advantage of OpenGL cards, but does fine without it. Since Maryo started off not needing OpenGL, IMO it should have either did what BTanks did or create a separate OpenGL version. You don't see Nintendo remaking Super Mario in 3D do you? Instead they created a new 3D game, Super Mario 64.

In any case, they all look like really great games, OpenGL or not. I am quite curious about Cultivation and Allacrost. They look really promising.