Games like Erannorth Renaissance
Games like Erannorth Renaissance include 鬼谷八荒 Tale of Immortal, Love Is All Around, Baldur's Gate 3, Legend of Mortal, and Emily is Away <3. We matched them by the tags players give Erannorth Renaissance on Steam (Dating Sim, 2D, Moddable, Interactive Fiction, and Singleplayer): closest matches first, and among equally close ones the better-known games.

鬼谷八荒 Tale of Immortal
Shared: Singleplayer · Dating Sim · Tactical RPG

Love Is All Around
Shared: Dating Sim · Singleplayer · Interactive Fiction

Baldur's Gate 3
Shared: Character Customization · Turn-Based Combat · Adventure

Legend of Mortal
Shared: Dating Sim · Singleplayer · Choices Matter

Emily is Away <3
Shared: Dating Sim · Singleplayer · Choices Matter

The Henry Stickmin Collection
Shared: Choose Your Own Adventure · Singleplayer · 2D

Mount & Blade II: Bannerlord
Shared: Singleplayer · Moddable · Strategy

Knowledge, or know Lady
Shared: Dating Sim · Singleplayer · Interactive Fiction

The Life and Suffering of Sir Brante
Shared: Interactive Fiction · Choose Your Own Adventure · Choices Matter

People Playground
Shared: Moddable · 2D · Singleplayer

Volcano Princess
Shared: Dating Sim · Choices Matter · Multiple Endings

LoveChoice
Shared: Dating Sim · Choices Matter · Multiple Endings

Game Dev Tycoon
Shared: 2D · Singleplayer · Moddable

Undertale
Shared: 2D · Singleplayer · Choices Matter

Swords and Souls: Neverseen
Shared: Singleplayer · 2D · Character Customization

STAR WARS™ Knights of the Old Republic™ II - The Sith Lords™
Shared: Singleplayer · Adventure · Moddable

Love is All Around: Echoes of Yesterday
Shared: Dating Sim · Adventure · Interactive Fiction

Late Shift
Shared: Interactive Fiction · Choose Your Own Adventure · Adventure

To the Moon
Shared: Singleplayer · Interactive Fiction · Adventure

Dragon Age: Origins - Ultimate Edition
Shared: Singleplayer · Adventure · RPG

The World of Kungfu: Dragon and Eagle
Shared: 2D · Adventure · Singleplayer

Far Away
Shared: Singleplayer · Choose Your Own Adventure · Choices Matter

Fallout: New Vegas
Shared: Moddable · Singleplayer · Adventure

Hero's Adventure: Road to Passion
Shared: Singleplayer · RPG · Adventure