Skargoth: And I got two more games for the list.

Niche - a genetics survival game v1.1.4
"Survivor" for 50 days. I got up to day 75 in Story Mode and it didn't unlock. "Still Alive!" and "Never gonna give you up" are the same kind of achievement for 250 and 1000 days so I assume they are broken, too. I was able to unlock "Sweet Sweet Love" though so it might just be those 3. I have not tried rolling back yet.

Rezrog v1.1.0
It looks like all the achievements are unlockable if you roll back (the vast majority if you don't), but quite a few of them are still broken in various ways. And they are not awarded retroactively.
- "Epic!" and "Legendary!": These are awarded for equipping items of the corresponding rarity in each equipment slot, but they unlocked prematurely for me. I think I already got them after equipping 2 or 3 items.
- "Adept of ___ Damage #": Awarded for defeating enemies with a certain damage type. The damage types are mixed up. I think I got those for Earth damage from dealing physical damage and for dealing Void damage I got both the achievements for Physical and Void damage at the same time.
- "Physical Gem Enthusiast #": Awarded for using physical gems to level up skills. These just don't work at all. I was able to unlock the first one after rolling back to v1.0.8

TentacleMayor: Order of Battle - Semper FI achievement. I have 5 marine units (not raiders) in my core force, each with 2 or more kills, didn't get the achievement. Been playing on difficulty 3 or 4 since the start. A couple of them were imported from the tutorial campaign, but who knows why it didn't trigger.

Flashfire42: How long have Saints Row IV achievements not been working? I unlocked one seven days ago but there are other achivevements I have reached the criteria for and not unlocked.

falloutttt: Sudden Strike 4 achievements don't work.

Astrox Imperium, list of achievements is there, but none can be unlocked so far.

Alexim: Damn, even Sudden Strike 4? It must be a fairly recent bug.

Astrox Imperium is currently in development and the achievements aren't marked on the game card, so I assume the developer is still working on them.

falloutttt: I don;t know about how recent, i just got the game 3 days ago.

as for Astrox Imperium, the dev is done implementing achievements and is waiting on GOG-bear to hit that red button to activate the achievements. was hopping one of the GOG-bears would notice here.

GHOSTMD: Satellite Reign Achievements are still broken
(think it is ever since the devs carried out the first patch for it)

Alexim: Yes, the devs are practically untraceable and have abandoned the game even on Steam, really shameful.