Basically, ^this^ is the first time I've heard of it. From a Nintendo Direct back on February the 17th, 2021. It looks like the type of indie title about clever decision-making, quick reflexes, and varied skills—a roguelike first-person shooter. Yeah, it looks like Boomerang X and maybe like Counter-Strike: Global Offensive surf mode. But I don't want to sound like LeafyIsHere. I want to get on the hype train for this title because the character design looks so darn good. I get to die, shoot demons, and best of all, it isn't rated M. Not saying I wouldn't like DOOM, but it is nice to see a neon white setting or maps. It has a lot of positive press already so I have no doubt there's good rating for it but I have to say it was worth the wait.
Might just list some ratings.
Neon White - Wikipedia
en.wikipedia.org
Also, CGMagazine gave it a 9.5/10
Wherever you read, it sounds great.