Games like Demon Queen's Hero Act
Games like Demon Queen's Hero Act include Zenless Zone Zero, Tales of Berseria™, Honkai Impact 3rd, Warframe, and Granblue Fantasy: Relink. We matched them by the tags players give Demon Queen's Hero Act on Steam (Collectathon, Idler, Action RPG, Female Protagonist, and Free to Play): closest matches first, and among equally close ones the better-known games.

Zenless Zone Zero
Shared: Free to Play · Cute · Anime

Tales of Berseria™
Shared: Female Protagonist · Action RPG · Story Rich

Honkai Impact 3rd
Shared: Free to Play · Action RPG · Action

Warframe
Shared: Action RPG · Free to Play · Action

Granblue Fantasy: Relink
Shared: Action RPG · Story Rich · Anime

Tales of ARISE
Shared: Action RPG · Anime · Story Rich

Black Myth: Wukong
Shared: Action RPG · Action · Story Rich

Blue Protocol: Star Resonance
Shared: Free to Play · Action RPG · Anime

Eastward
Shared: Action RPG · Story Rich · Pixel Graphics

AI LIMIT
Shared: Female Protagonist · Action RPG · Anime

CrossCode
Shared: Action RPG · Female Protagonist · Pixel Graphics

Wuthering Waves
Shared: Free to Play · Story Rich · Anime

GrandChase
Shared: Free to Play · Action RPG · Action

Little Witch Nobeta
Shared: Cute · Female Protagonist · Anime

Where Winds Meet
Shared: Free to Play · Action RPG · Story Rich

ENDER MAGNOLIA: Bloom in the Mist
Shared: Female Protagonist · Action RPG · Action

Idle Champions of the Forgotten Realms
Shared: Idler · Free to Play · Fantasy

Cyberdimension Neptunia: 4 Goddesses Online
Shared: Female Protagonist · Action RPG · Cute

Hyperdimension Neptunia U: Action Unleashed
Shared: Female Protagonist · Anime · Cute

FINAL FANTASY XVI
Shared: Action RPG · Story Rich · Action

Gujian3(古剑奇谭三)
Shared: Action RPG · Story Rich · Action

Path of Exile
Shared: Action RPG · Free to Play · Action