Games like The Vampire Regent
Games like The Vampire Regent include The Witcher 3: Wild Hunt — Remastered, Roadwarden, The Life and Suffering of Sir Brante, Vampyr, and The Witcher 2: Assassins of Kings Enhanced Edition. We matched them by the tags players give The Vampire Regent on Steam (RPG, Interactive Fiction, Text-Based, Action, and Casual): closest matches first, and among equally close ones the better-known games.

The Witcher 3: Wild Hunt — Remastered
Shared: RPG · Story Rich · Choices Matter

Roadwarden
Shared: RPG · Text-Based · Interactive Fiction

The Life and Suffering of Sir Brante
Shared: RPG · Interactive Fiction · Choices Matter

Vampyr
Shared: RPG · Choices Matter · Vampires

The Witcher 2: Assassins of Kings Enhanced Edition
Shared: RPG · Choices Matter · Story Rich

The Witcher: Enhanced Edition Director's Cut
Shared: RPG · Action · Choices Matter

Suzerain
Shared: Interactive Fiction · Choices Matter · Text-Based

Undertale
Shared: RPG · Choices Matter · Multiple Endings

Black Myth: Wukong
Shared: RPG · Action · Story Rich

The Blood of Dawnwalker
Shared: RPG · Vampires · Action

Tainted Grail: The Fall of Avalon
Shared: RPG · Adventure · Dark Fantasy

Aliya: Timelink
Shared: RPG · Interactive Fiction · Text-Based

Baldur's Gate 3
Shared: RPG · Choices Matter · Story Rich

Yes, Your Grace
Shared: RPG · Choices Matter · Casual

Mass Effect™ Legendary Edition
Shared: RPG · Choices Matter · Story Rich

Road to Empress Ⅱ
Shared: Interactive Fiction · Choices Matter · RPG

STAR WARS™ Knights of the Old Republic™ II - The Sith Lords™
Shared: RPG · Choices Matter · Story Rich

STAR WARS™ Knights of the Old Republic™
Shared: RPG · Story Rich · Choices Matter

Dragon Age: Origins - Ultimate Edition
Shared: RPG · Choices Matter · Story Rich

Road to Empress I
Shared: RPG · Choices Matter · Interactive Fiction

The Wolf Among Us
Shared: Choices Matter · Adventure · Multiple Endings

Kingdom Come: Deliverance II
Shared: RPG · Action · Story Rich

Emily is Away Too
Shared: Choices Matter · Casual · Text-Based

Mass Effect (2007)
Shared: RPG · Action · Story Rich