I was just perusing the community mod list when a thought came through my head "There is a Legend of Zelda mod, a Fallout mod, even a My Little Pony:FiM mod, Why isn't there a Mass Effect mod?" I have no skills in modding so I can't make it myself, but I am willing to learn to make this idea come to fruition.
Anyone who has play the Mass Effect series would know at least one thing "The ending sucks?" No Urist McStrawman, its the lore, and it was made by a company who have such expansive lore, I'm suprised no one has made even a small DF mod for it. Of course the main draw is the dialogue, and as we know DF isn't the best way to emulate this, but most other things you could do-of course the time it would take is questionable-are possible, as an example, the 'M-3 Predator Heavy Pistol' could easily be modded in as-with the Fallout, and Fallout Equestria mod have shown-guns are relatively easy to mod in.
The races would be the part that could be a bit hard, as some races are pacifists, while others are warmongers-the Hanar and Krogan come to mind-and since this is dwarf fortress, it is almost impossible to make a truly pacifist-or warmongerish-race. One suggestion is that we take creative freedom-like with the Fallout Equestria mod did with the things in its universe-and make some in-fluff reason-though it may be unnecessary as
The Hanar do threaten to take up arms against the Citadel claiming to be 'Doing the Will of the Enkindlers' which are the Reapers
-for this sudden change in disposition.
I-like I said-am terrible at modding so, anything you have to contribute will be good, and any ideas are also welcome as we could after a while, we could have a big collaboration mod