Games like StarCrossed
Games like StarCrossed include Cuphead, Muse Dash, Broforce, River City Girls, and Phantom Breaker: Battle Grounds Classic. We matched them by the tags players give StarCrossed on Steam (Female Protagonist, Action, Local Co-Op, Indie, and Cute): closest matches first, and among equally close ones the better-known games.

Cuphead
Shared: Local Co-Op · Co-op · Indie

Muse Dash
Shared: Female Protagonist · Cute · Anime

Broforce
Shared: Action · Local Co-Op · Co-op

River City Girls
Shared: Action · Female Protagonist · Local Co-Op

Phantom Breaker: Battle Grounds Classic
Shared: Action · Female Protagonist · Cute

Streets of Rage 4
Shared: Action · Indie · Arcade

Overcooked
Shared: Local Co-Op · Indie · Arcade

Revolution Ace
Shared: Action · Indie · Local Co-Op

Overcooked! 2
Shared: Local Co-Op · Co-op · Indie

ICEY
Shared: Female Protagonist · Action · Indie

Touhou Tenkuushou ~ Hidden Star in Four Seasons.
Shared: Female Protagonist · Indie · Bullet Hell

A Hat in Time
Shared: Cute · Female Protagonist · Indie

ZeroRanger
Shared: Indie · Action · Bullet Hell

Touhou Fuujinroku ~ Mountain of Faith.
Shared: Action · Indie · Female Protagonist

Pikuniku
Shared: Indie · Cute · Action

Rabi-Ribi
Shared: Female Protagonist · Cute · Indie

Hatsune Miku: Project DIVA Mega Mix+
Shared: Cute · Action · Female Protagonist

Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Female Protagonist · Action · Bullet Hell

Gang Beasts
Shared: Action · Co-op · Indie

Just Shapes & Beats
Shared: Action · Indie · Bullet Hell

Rabbit and Steel
Shared: Cute · Co-op · Bullet Hell

Vanguard Princess
Shared: Female Protagonist · Indie · Action

Rift of the NecroDancer
Shared: Female Protagonist · Indie · Action

Enter the Gungeon
Shared: Indie · Local Co-Op · Bullet Hell