One more for the list: Crystal Caves HD.
Can confirm as i do own the game. :-)
Aren't they tied to the Galaxy achievements though?
Well, "they" are their own section in game. Please kindly mention screenshots attached.
Right now the presentation in Galaxy 2 (v2.0.23 Hotfix october 2020) for game version 22.214.171.124 is weird/different as you can see in screenshot #3 - all the other non-achieved trophies are not displayed (not even as "secret")...so i have reached 100% progress (hooray, i guess?).
Regarding exophase there are 32 achievements.This matches the count in screenshot #2.
Hope this answers your question.