xbox one stellaris - What makes a game ineligible for achievements

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

Official Xbox Magazine 172 (Sampler) by Future PLC - Issuu

Achievement unlocked! An analysis of video-game gratification system., by Pan Puszek

Steam Community :: UNBEATABLE [white label]

Stellaris: Console Edition - Grand Strategy Isn't Just for PCs Anymore - Xbox Wire

Eligible for achievements cannot be trusted : r/Stellaris

Games Blog — Brian Lelas

How to turn on achievements? : r/Stellaris

why aren't I getting any achievements? : r/Stellaris

Stellaris Console Edition : Video Games

Stellaris: Console Edition - Game Overview

Achievement unlocked! An analysis of video-game gratification system., by Pan Puszek

Paradox sets the standards for space 4-x with Stellaris