Games like 99 Spirits
Games like 99 Spirits include Tales of the Black Forest, Metaphor: ReFantazio, Clair Obscur: Expedition 33, Tales of Berseria™, and Tales of ARISE. We matched them by the tags players give 99 Spirits on Steam (RPG, Anime, Indie, Adventure, and JRPG): closest matches first, and among equally close ones the better-known games.

Tales of the Black Forest
Shared: RPG · Indie · Adventure

Metaphor: ReFantazio
Shared: RPG · Anime · JRPG

Clair Obscur: Expedition 33
Shared: RPG · JRPG · Singleplayer

Tales of Berseria™
Shared: Anime · RPG · JRPG

Tales of ARISE
Shared: Anime · RPG · JRPG

Persona 5 Royal
Shared: Anime · JRPG · RPG

Greyfox RPG
Shared: Anime · Indie · RPG

ICEY
Shared: Anime · Female Protagonist · Adventure

Ruined King: A League of Legends Story™
Shared: RPG · Adventure · Singleplayer

Mirror 2: Project X
Shared: Anime · Female Protagonist · RPG

Persona 3 Reload
Shared: Anime · RPG · JRPG

CrossCode
Shared: RPG · Female Protagonist · Indie

The Legend of Heroes: Trails in the Sky
Shared: RPG · Anime · JRPG

Bloodstained: Ritual of the Night
Shared: RPG · Anime · Female Protagonist

Persona 4 Golden
Shared: Anime · JRPG · RPG

Ni no Kuni™ II: Revenant Kingdom
Shared: RPG · Anime · JRPG

FINAL FANTASY X/X-2 HD Remaster
Shared: RPG · JRPG · Adventure

Learn Japanese To Survive! Hiragana Battle
Shared: RPG · Indie · Adventure

FINAL FANTASY XV WINDOWS EDITION
Shared: RPG · JRPG · Adventure

Recettear: An Item Shop's Tale
Shared: Anime · RPG · Indie

FINAL FANTASY® XIII-2
Shared: RPG · JRPG · Female Protagonist

WILL: A Wonderful World / WILL:美好世界
Shared: RPG · Adventure · Indie

FINAL FANTASY® XIII
Shared: RPG · JRPG · Female Protagonist

The Vagrant
Shared: RPG · Female Protagonist · Adventure