This is Emmanuelle Sharon, the character I created for my main playthroughs of the Mass Effect games. After I ran out of officially-sanctioned adventures for her, I started trying to create my own over at the Mass Effect Fanon Wiki. Among her major adventures is a trip to the former asari colony of Esan (in the game, it's known as Lorek, as it was annexed by the Batarian Hegemony in 1913) to rescue asari mercs who've become stuck on the planet after a job gone wrong. While there, she discovers an old city that was left untouched during the annexation, where, among other things, she finds some old asari-made guns called the Remnants of Esan. In hindsight, asari weapons from 1913 probably wouldn't be steampunk-style, as the asari are the oldest continuing civilization in the ME universe, but, ehh, I just thought they looked cool...