It sucks that Steam won, I hated being forced into it in order to play Civ5 and Skyrim.
I hate Epic exclusives too, and can't help but wonder if it is more harmful in the long run for a developer to take the money.
I have one game on Epic, Mechwarrior 5. I pre-ordered, and the game went Epic exclusive after my pre-order. So I played it on Epic, and really didn't like Epic's lack of user comforts found on Steam. After that I found no reason to keep using Epic. (I wont be getting the Mechwarrior 5 expansion)
So now when I see an Epic exclusive, it's just another game that I won't bother with until it's on a Steam sale years later. This makes me wonder how many other people have an "interested later when it's on sale" list for new games. I seriously categorize new games I am interested in into "yep full price" or "50% off in about 1.5 years from now".
Too bad, I would have bought GalCiv 4 at full price now that Totalwar Warhammer 3 is delayed. There's nothing really interesting in the 4x scene right now.
What Steam feature do you think would benefit GalCiv IV? I mean, seriously, what exactly prevents you from buying games on one store versus another? GalCiv IV is going to do its own mod thing so it's not as if it's going to be using Steam workshop or something.
I like Steam a lot. But it does take 30% of our revenue which is an awful lot. It's not as if people are "discovering" our games on there which was the big benefit back in the day. Steam now releases dozens of games per day. New releases get buried.
I could easily make the case that GalCiv IV may never be added to Steam purely for economic reasons. GalCiv fans and people into 4X will know about GalCiv and frankly, anyone who would try to strong arm me to put my game on some platform without a really really good reason is not someone I want playing my games. And "because I want my games in a single launcher" is not persuasive.
Like I said, I like Steam. I prefer it to Epic as a store UX and its general maturity as a gamer. I am also a pretty big Valve fan in general. But the 30% cut thing without the benefit of discovery is a problem (go check out the Endless Space 2 page and look at the "other games like this" -- no Distant Worlds, no GalCiv III, but instead we see Heartless Iron, Troy, Middle Earth: SoW). If you're paying Steam millions of dollars a year in commissions, you'd expect this sort of thing to be nailed by now.