Games like Singularity Strike
Games like Singularity Strike include Bright Memory: Infinite, DRAINUS, ICEY, ZeroRanger, and LUFTRAUSERS. We matched them by the tags players give Singularity Strike on Steam (Action, Shoot 'Em Up, Indie, Arcade, and Female Protagonist): closest matches first, and among equally close ones the better-known games.
Bright Memory: Infinite
Shared: Action · Female Protagonist · Indie
DRAINUS
Shared: Action · Shoot 'Em Up · Indie
ICEY
Shared: Action · Female Protagonist · Indie
ZeroRanger
Shared: Shoot 'Em Up · Indie · Action
LUFTRAUSERS
Shared: Indie · Action · Arcade
Cyberhunt
Shared: Action · Indie · Shoot 'Em Up
Star Saviors
Shared: Shoot 'Em Up · Action · Indie
Touhou Fuujinroku ~ Mountain of Faith.
Shared: Action · Indie · Shoot 'Em Up
Zombotron
Shared: Action · Indie · 2D
Hollow Knight: Silksong
Shared: Indie · 2D · Singleplayer
Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Shoot 'Em Up · Action · Female Protagonist
BALL x PIT
Shared: Action · Arcade · Shoot 'Em Up
Vampire Survivors
Shared: Indie · 2D · Action
Skul: The Hero Slayer
Shared: Action · Indie · 2D
Touhou Tenkuushou ~ Hidden Star in Four Seasons.
Shared: Shoot 'Em Up · Indie · Female Protagonist
Ikaruga
Shared: Shoot 'Em Up · Action · Arcade
Jet Lancer
Shared: Action · Indie · Shoot 'Em Up
Rogue Legacy 2
Shared: Action · Arcade · Indie
A Dance of Fire and Ice
Shared: Indie · Arcade · 2D
Touhou Kinjoukyou ～ Fossilized Wonders.
Shared: Shoot 'Em Up · Action · Arcade
The Vagrant
Shared: Action · Female Protagonist · 2D
Revolution Ace
Shared: Action · Shoot 'Em Up · Indie
The Bug Butcher
Shared: Action · Indie · Shoot 'Em Up
Defy Gravity Extended
Shared: Indie · Action · 2D