Just look at Hotline Miami or Gunpoint for other examples. I'll note that it's partly a question of genre, IMHO. While Eldritch got some success, I think FPS are a genre where it's a lot more difficult to go for a minimalistic look.
Thanks for the examples, I agree Hotline Miami and Gunpoint have strong visual styles, never knew about them before today. Gunpoint in particular looks like a great game too, would happily play that. Hotline Miami visually looks like a trippy neon Alien Breed to me, I like trippy visuals, Rez is a good example of that IMO.
I agree FPSes traditionally have been hard to make stylish, but that's not to say it can't be done. Whilst it's not a shooter, Mirror's Edge is a decent example. Eldritch isn't to my taste but I agree it's an attempt to craft something memorable. I also think the makers of Timesplitters were onto something, perhaps it could do with some cleaner lines (easily achievable now), but it could have become something iconic. There was also a FPS game (I forget the name) where bullets only moved fast when you moved, you can probably still find it somewhere, I thought that was stylish too.
