[SOLVED] Steam Achievement Problem

[Pumpkin]

Kahaaaan!

After hours of hard work (save-try-reload), I finally get the ending with only the bad guys in the federation (Burlusts, Acutians and Thoraxians). I already own the much easier good guys version (Skylaxians, Andors and Peltians) both ingame and with Steam, but on succeeding the bad-guys achievement, I got the ingame but not the steam achievement.

Is there players experiencing similar achievements not triggering on steam?
Thanks in advance!

[topper]

If you didn't load it through Steam (if you booted it from the desktop icon), then it will not sync the achievements until next time you load it with Steam.

Since you have it ingame, it should sync, and is probably an issue to mantis if it does not sync next time you load the game with steam.

[Pumpkin]

Oh, yeah, indeed. It solved the problem. Thank you very much. I was a bit too prompt to report here.
Hard work to get things right led to immediate checking of steam validating the achievement. Actually, that prove the game is fundamentally good: it kept me deeply involved and resulted to... something like "eager"... Anyway: good job, Arcen!

For future readers: know that steam may have some delay between ingame achievement and steam sync.