Games like ASCENXION
Games like ASCENXION include Hollow Knight, Bit Blaster XL, Hollow Knight: Silksong, Touhou Luna Nights, and Minishoot' Adventures. We matched them by the tags players give ASCENXION on Steam (Shoot 'Em Up, Metroidvania, Bullet Hell, Side Scroller, and Twin Stick Shooter): closest matches first, and among equally close ones the better-known games.
Hollow Knight
Shared: Metroidvania · Difficult · 2D
Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · Difficult
Hollow Knight: Silksong
Shared: Metroidvania · Difficult · 2D
Touhou Luna Nights
Shared: Metroidvania · Bullet Hell · Side Scroller
Minishoot' Adventures
Shared: Metroidvania · Bullet Hell · Twin Stick Shooter
Enter the Gungeon
Shared: Bullet Hell · Difficult · Twin Stick Shooter
Nine Sols
Shared: Metroidvania · Difficult · 2D
Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Shoot 'Em Up · Bullet Hell · Difficult
Cuphead
Shared: Difficult · 2D · Bullet Hell
Jets'n'Guns 2
Shared: Shoot 'Em Up · Side Scroller · Bullet Hell
Jets'n'Guns Gold
Shared: Shoot 'Em Up · Side Scroller · Bullet Hell
Assault Android Cactus+
Shared: Shoot 'Em Up · Bullet Hell · Twin Stick Shooter
Beat Hazard
Shared: Shoot 'Em Up · Bullet Hell · Twin Stick Shooter
Chippy
Shared: Bullet Hell · Shoot 'Em Up · Twin Stick Shooter
Momodora: Reverie Under The Moonlight
Shared: Metroidvania · Side Scroller · Difficult
Skul: The Hero Slayer
Shared: Metroidvania · Action · 2D
Salt and Sanctuary
Shared: Metroidvania · Difficult · 2D
Rabi-Ribi
Shared: Metroidvania · Bullet Hell · Side Scroller
Zombotron
Shared: 2D · Shoot 'Em Up · Action
Sine Mora
Shared: Shoot 'Em Up · Bullet Hell · Side Scroller
Nex Machina
Shared: Bullet Hell · Twin Stick Shooter · Shoot 'Em Up
Blasphemous
Shared: Metroidvania · 2D · Difficult
Geometry Dash
Shared: Difficult · 2D · Side Scroller
Bloody Hell
Shared: Metroidvania · Bullet Hell · Twin Stick Shooter