Algea
Insider
I was thinking about other playable races and Madoc's words that they will have completely different psychologies and I remembered about one thing that always peeved me in the Mass Effect series - how every last race was in essence humans with different meshes and skins. I wonder if Sui Generis is able to really implement different races' psychologies, because it's made by humans. It's a really hard and complex and ambitious thing to do; and it's so much more interesting and unusual than any playable race that devs could possibly make available.