Games like GrandChase
Games like GrandChase include Warframe, Brawlhalla, KurtzPel, Path of Exile, and Granblue Fantasy: Relink. We matched them by the tags players give GrandChase on Steam (Free to Play, Action, PvE, Action RPG, and Online Co-Op): closest matches first, and among equally close ones the better-known games.

Warframe
Shared: Free to Play · Action · Action RPG

Brawlhalla
Shared: Free to Play · Casual · Action

KurtzPel
Shared: Free to Play · Action · PvP

Path of Exile
Shared: Free to Play · Action RPG · Hack and Slash

Granblue Fantasy: Relink
Shared: Action RPG · Action · Online Co-Op

Dungeon Fighter Online
Shared: Free to Play · Character Customization · PvE

BLEACH Brave Souls
Shared: Free to Play · Action · Action RPG

Paladins®
Shared: Free to Play · Action · PvP

Where Winds Meet
Shared: Free to Play · Action RPG · Multiplayer

Diablo® IV
Shared: Action RPG · Hack and Slash · Online Co-Op

skate.
Shared: Free to Play · Action · Online Co-Op

Marvel Rivals
Shared: Free to Play · Action · PvP

The First Descendant
Shared: Free to Play · Action · Online Co-Op

UNDECEMBER: The Farside
Shared: Free to Play · Action RPG · Action

NARAKA: BLADEPOINT
Shared: Action · PvP · Multiplayer

Omega Strikers
Shared: Action · PvP · Free to Play

Delta Force
Shared: Free to Play · Action · Online Co-Op

MONSTER HUNTER RISE
Shared: Action · Online Co-Op · Action RPG

Apex Legends™
Shared: Free to Play · Action · PvP

Solo Leveling: ARISE OVERDRIVE
Shared: Action · Action RPG · Online Co-Op

THE FINALS
Shared: Free to Play · PvP · Action

Destiny 2
Shared: Free to Play · PvE · PvP

Neverwinter
Shared: Free to Play · Action · Multiplayer

Phantasy Star Online 2 New Genesis
Shared: Free to Play · Action RPG · Character Customization