Games like Mabinogi
Games like Mabinogi include Neverwinter, Blue Protocol: Star Resonance, Where Winds Meet, The Elder Scrolls Online - Standard Edition, and Albion Online. We matched them by the tags players give Mabinogi on Steam (Free to Play, Massively Multiplayer, Anime, RPG, and MMORPG): closest matches first, and among equally close ones the better-known games.

Neverwinter
Shared: Free to Play · Massively Multiplayer · RPG

Blue Protocol: Star Resonance
Shared: Anime · Free to Play · MMORPG

Where Winds Meet
Shared: Free to Play · Open World · Massively Multiplayer

The Elder Scrolls Online - Standard Edition
Shared: RPG · MMORPG · Massively Multiplayer

Albion Online
Shared: Free to Play · Massively Multiplayer · MMORPG

FINAL FANTASY XIV Online
Shared: Massively Multiplayer · RPG · MMORPG

Trove
Shared: Free to Play · MMORPG · RPG

Guild Wars 2®
Shared: Free to Play · MMORPG · RPG

Star Trek Online
Shared: Free to Play · Massively Multiplayer · MMORPG

Once Human
Shared: Free to Play · Action · Open World

Wuthering Waves
Shared: Free to Play · Anime · RPG

Phantasy Star Online 2 New Genesis
Shared: Free to Play · Massively Multiplayer · MMORPG

DRAGON BALL XENOVERSE 2
Shared: Anime · Massively Multiplayer · Action

SMITE®
Shared: Free to Play · Action · MMORPG

Warframe
Shared: Free to Play · RPG · Massively Multiplayer

Destiny 2
Shared: Free to Play · MMORPG · Open World

Monster Hunter: World
Shared: RPG · Action · Open World

KurtzPel
Shared: Free to Play · Anime · Action

DRAGON BALL Z: KAKAROT
Shared: Anime · RPG · Action

Gloria Victis: Medieval MMORPG
Shared: Massively Multiplayer · MMORPG · RPG

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

Marvel Rivals
Shared: Free to Play · Action · Massively Multiplayer

Dungeon Fighter Online
Shared: Free to Play · Anime · RPG

SWORD ART ONLINE Alicization Lycoris
Shared: RPG · Anime · Action