Games like Eternal Realm
Games like Eternal Realm include Epic Battle Fantasy 5, Battle Chasers: Nightwar, Epic Battle Fantasy 4, Cthulhu Saves the World, and Chained Echoes. We matched them by the tags players give Eternal Realm on Steam (RPG, Indie, Turn-Based, JRPG, and Dungeon Crawler): closest matches first, and among equally close ones the better-known games.

Epic Battle Fantasy 5
Shared: JRPG · Turn-Based · Indie

Battle Chasers: Nightwar
Shared: RPG · JRPG · Indie

Epic Battle Fantasy 4
Shared: Indie · Turn-Based · JRPG

Cthulhu Saves the World
Shared: RPG · JRPG · Indie

Chained Echoes
Shared: RPG · Turn-Based · Indie

Darkest Dungeon®
Shared: RPG · Dungeon Crawler · Turn-Based

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

Dungeons of Dredmor
Shared: RPG · Turn-Based · Indie

Yakuza: Like a Dragon
Shared: RPG · JRPG · Turn-Based

South Park™: The Stick of Truth™
Shared: RPG · Comedy · Turn-Based

Doom & Destiny
Shared: RPG · Indie · Comedy

Breath of Death VII
Shared: RPG · JRPG · Indie

Path Of Wuxia
Shared: RPG · Indie · Turn-Based

OMORI
Shared: Indie · RPG · Turn-Based

OCTOPATH TRAVELER II
Shared: RPG · Turn-Based · JRPG

West of Loathing
Shared: RPG · Comedy · Indie

Hyperdimension Neptunia Re;Birth1
Shared: JRPG · RPG · Turn-Based

OCTOPATH TRAVELER™
Shared: RPG · JRPG · Turn-Based

Disgaea PC
Shared: JRPG · RPG · Turn-Based

Knights of Pen and Paper 2
Shared: RPG · Turn-Based · Indie

South Park™: The Fractured But Whole™
Shared: RPG · Comedy · Turn-Based

Stoneshard
Shared: RPG · Turn-Based · Dungeon Crawler

Knights of Pen and Paper +1 Edition
Shared: RPG · Indie · Turn-Based

LiEat
Shared: Indie · RPG · Turn-Based