Games like Kokurase Episode 1
Games like Kokurase Episode 1 include Wuthering Waves, Blue Protocol: Star Resonance, Honkai Impact 3rd, NTE: Neverness to Everness, and Neverwinter. We matched them by the tags players give Kokurase Episode 1 on Steam (Free to Play, RPG, Indie, Adventure, and Anime): closest matches first, and among equally close ones the better-known games.

Wuthering Waves
Shared: Free to Play · Anime · RPG

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

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

NTE: Neverness to Everness
Shared: Free to Play · RPG · Anime

Neverwinter
Shared: Free to Play · RPG · Adventure

Chrono Ark
Shared: RPG · Anime · Indie

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

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

Where Winds Meet
Shared: Free to Play · Adventure · RPG

Idle Champions of the Forgotten Realms
Shared: Free to Play · Adventure · Indie

SMITE®
Shared: Free to Play · Indie · Anime

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

Snowbreak: Containment Zone
Shared: Free to Play · Anime · RPG

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

ICEY
Shared: Anime · Adventure · Indie

Dungeon Munchies
Shared: Indie · Adventure · RPG

Heroine's Quest: The Herald of Ragnarok
Shared: RPG · Free to Play · Adventure

Warframe
Shared: Free to Play · RPG · Free To Play

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

Samsara Room
Shared: Indie · Free to Play · Adventure

Marvel Rivals
Shared: Free to Play · RPG · Adventure

Greyfox RPG
Shared: Indie · Adventure · RPG

Sands of Salzaar
Shared: RPG · Indie · Adventure

Palia
Shared: Free to Play · RPG · Indie