The Mass Effect universe is vast and full of stories, but many players miss a lot of its lore, even those who are really into the games. There’s a huge amount of information spread out across the games, comics, novels, and other materials that create a rich world with complex histories and narratives. Most players tend to concentrate on the main storylines and characters in the trilogy, which means they often overlook the deeper history, politics, and character development available.

https://screenrant.com/mass-effect-obscure-lore-facts-list/