I'm no fan of Among Us by any stretch of the imagination as I find it obnoxious, unfunny, and overplayed, but I'm always willing to give any property a chance as the vibe of a property (no matter how far fetched) can be successful if done well.
To wit, despite the colorful, cartoonish mass appeal, Among Us is a genuine horror game, and it's modeled after some of the greatest horror properties of all time. Faceless, masked, everyperson killer (Friday the 13th/Scream) that looks like/can mimic other people (The Thing) and is basically unstoppable (Halloween) hunts people down and kills them in brutal and creative ways (Nightmare on Elm Street) in a sci-fi setting as the plucky, relatable crew (Alien) desperately try and escape by repairing the glitchy ship they are trapped on (Event Horizon).
Does what I describe something I'd like to see at Halloween Horror Nights? 100%. Would it be divisive? Absolutely. Would I reserve judgement? Yeah, surprisingly. As a horror premise, it's absolutely dynamite, and if the creative team stripped away the cartoon aesthetics and just focused on pure horror, I could see it being a fantastic house (even if sci-fi is hard to pull off).