>>713104716
That's true for pretty much every single genre outside of RTS and point & click adventures tho
SHMUPs are also far less popular than other genres, the best selling "bullet hell" games on Steam are Vampire Survivor clones
The best selling "Shoot'em ups" are more Vampire Survivor clones and Cuphead
You need to scroll far down to finally find an actual SHMUP and it doesn't even have 100 reviews