I honestly assumed I was colorblind in one eye (I am diagnosed, at least)
The thing that finally got businesses to finally get off IE wasn't from the browser being worse than every other option. Heck, it wasn't even because it was a decrepit piece of software that lost it's former market dominance (and if anything businesses see that as a positive, not a negative).
What finally did that was microsoft saying there won't be any security updates. That's what finally got them off their ass; subtly threatening them with data breaches, exploits, etc. if they continue to use it. I don't see google doing this anytime soon, at least not without a "sequel" like microsoft had with edge.
Surprised TOEM isn't on your list, given the premise is pretty much exactly what you describe. Last I checked it comes up on the first page or something if you sort steam by highest rated.
Lunacid might also be a good game. I think it fits your criteria for me, but that might just be for me.
I dunno, having two primes sum to a power of two is undeniably powerful in my experience. The number of times a calculation goes from tedious to trivial from this sum is incalculable. The lowest I'd put it is A.
I don't think this can really be answered until after the fact. Anything that I (and I suspect most) people could say about an artstyle are going to be particular to an instance of that artsyle. If I'd give advice as someone who is neither an artist nor a game designer, what attracts me more than anything is a unique artstyle, which, if I'm gonna give a brutal opinion, starting from a vague category like 'pixel', 'hand drawn' or '3D' probably won't get you there.
I feel like I even struggle to answer your question at face value because it doesn't align well at all with how I conceptualize game art. For example, Cruelty Squad is a game that I don't think I'd have gotten if not for it's artsyle. Like, sure, it's 3D, but it's a lot more like a PilotRedSun animation than it is a game like TF2. Or take a game like Factorio: most of the assets of that game are pre-rendered 3D sprites, so despite being artisticly unique in a way that interests me it doesn't fit into the categories you've asked about. The best I can say is "I dunno", and I don't think anyone else can answer it further than that.