Games like Japanese Psycho
Games like Japanese Psycho include HELLDIVERS™ 2, Starward, ICEY, STAR WARS™ Battlefront™ II, and Strinova. We matched them by the tags players give Japanese Psycho on Steam (Action, Anime, Shooter, Third-Person Shooter, and Spectacle fighter): closest matches first, and among equally close ones the better-known games.

HELLDIVERS™ 2
Shared: Third-Person Shooter · Action · Shooter

Starward
Shared: Action · Anime · Third-Person Shooter

ICEY
Shared: Action · Anime · Female Protagonist

STAR WARS™ Battlefront™ II
Shared: Shooter · Action · Third-Person Shooter

Strinova
Shared: Anime · Third-Person Shooter · Shooter

Gears 5
Shared: Action · Third-Person Shooter · Shooter

Danganronpa Another Episode: Ultra Despair Girls
Shared: Anime · Action · Third-Person Shooter

PUBG: BATTLEGROUNDS
Shared: Shooter · Action · Third-Person Shooter

Snowbreak: Containment Zone
Shared: Anime · Shooter · Third-Person Shooter

EARTH DEFENSE FORCE 6
Shared: Action · Shooter · Third-Person Shooter

The Mean Greens - Plastic Warfare
Shared: Action · Shooter · Third-Person Shooter

Max Payne 3
Shared: Action · Third-Person Shooter · Shooter

Aliens: Fireteam Elite
Shared: Shooter · Action · Third-Person Shooter

Bright Memory: Infinite
Shared: Action · Shooter · Female Protagonist

EARTH DEFENSE FORCE 5
Shared: Action · Third-Person Shooter · Shooter

Devil May Cry 5
Shared: Action · Spectacle fighter · Demons

Aimlabs
Shared: Shooter · Action · Third-Person Shooter

Grand Theft Auto V Legacy
Shared: Action · Shooter · Third-Person Shooter

Tomb Raider Game of the Year
Shared: Action · Third-Person Shooter · Female Protagonist

Bright Memory
Shared: Shooter · Action · Female Protagonist

DOOM Eternal
Shared: Action · Shooter · Demons

Rollerdrome
Shared: Action · Shooter · Third-Person Shooter

Sword Art Online: Fatal Bullet
Shared: Anime · Action · Third-Person Shooter

EARTH DEFENSE FORCE 4.1 The Shadow of New Despair
Shared: Action · Third-Person Shooter · Anime