Games like System // Crash
Games like System // Crash include Katana ZERO, SANABI, Anomaly Agent, Dead Cells, and Hero Siege. We matched them by the tags players give System // Crash on Steam (Action, Adventure, Hack and Slash, 2D Platformer, and Platformer): closest matches first, and among equally close ones the better-known games.

Katana ZERO
Shared: Action · Platformer · 2D Platformer

SANABI
Shared: Action · Adventure · 2D Platformer

Anomaly Agent
Shared: 2D Platformer · Hack and Slash · Platformer

Dead Cells
Shared: Adventure · Hack and Slash · 2D

Hero Siege
Shared: Hack and Slash · Action RPG · Pixel Graphics

BlazBlue Entropy Effect
Shared: Action · Platformer · 2D

Skul: The Hero Slayer
Shared: Action · 2D · Platformer

Blasphemous 2
Shared: Adventure · 2D Platformer · Hack and Slash

ICEY
Shared: Action · Hack and Slash · Adventure

Dust: An Elysian Tail
Shared: Action · Platformer · Adventure

Celeste
Shared: Platformer · 2D Platformer · Pixel Graphics

Eastern Exorcist
Shared: Action · Adventure · Hack and Slash

Wolcen: Lords of Mayhem
Shared: Hack and Slash · Action RPG · Action

Death Must Die
Shared: Bullet Hell · Action · Hack and Slash

Sonic Origins
Shared: Action · Adventure · 2D Platformer

Broforce
Shared: Action · Platformer · 2D

Dungeon Munchies
Shared: Action · Adventure · Pixel Graphics

Pizza Tower
Shared: 2D Platformer · Platformer · Action

NINJA GAIDEN: Ragebound
Shared: Action · 2D Platformer · Platformer

Shovel Knight: Treasure Trove
Shared: Platformer · Adventure · Action

Last Epoch
Shared: Hack and Slash · Action RPG · Action

Path of Exile 2
Shared: Hack and Slash · Action RPG · Action

Exit the Gungeon
Shared: Action · Adventure · Bullet Hell

Warhammer 40,000: Inquisitor - Martyr
Shared: Hack and Slash · Action · Action RPG