Well, actually in CrossOver (almost the same thing), and it was no easy task. hahaha (I had to make a couple of modified scripts to get it to run) I suppose I don't HAVE to run it on Linux, but since 5 of my 7 computers run this OS, it makes sense to have it as an option.
I have never used Steam in particular, but have tried other similar portals in the past with unsatisfactory results. I didn't mind D2D much, but the GameFly takeover really pissed in my post toasties when I lost the only 2 games (Anno1701 and Anno1502) I actually played on it. Uplay is horrid, laggy, ad-intensive (same with GameFly though), and generally pissing in my post toasties on a weekly basis as I really love the Anno series. I like stand-alone games better. It's nobody's business what games I play or how often I play them. I'm not much of a game chatter, nor do I play online much (except for WoW), so the multi-player and chat isn't of much interest to me. I like modding games, I like cars in general, and I want to be left alone when I play them, so I don't want a bunch of ads flashing at me. I quit playing SimCity when it went online, as it takes far more away than it added, for me. If I do HAVE to use Steam (one more stupid account to keep up with) I will, but it isn't my personal choice.