I have played 3 full (disastrous) games of Stellaris so far but all of them were using a custom race and galaxy generation stats. Now I want to play for achievements, and every time I go to start a new game it shows the following red text at the bottom of the screen:
It shows this text even when I'm using a default empire, or a randomized empire, and I've reset all the settings to default.
Why am I ineligible for achievements? Can anyone tell from my screenshot if there is a setting that didn't go back to default, even though I pressed that reset button?
EDIT: As pointed out in comments below, there is an answer to another question (How to connect a Stellaris account with Steam?) that also includes the info in my answer. However, the title describes a different issue (I personally scrolled past it before posting my question), so rather than mark as a duplicate I will leave this up for now in case someone else has the same confusion.