Games like Questr
Games like Questr include 鬼谷八荒 Tale of Immortal, Slay the Spire, Slay the Spire 2, Darkest Dungeon®, and Balatro. We matched them by the tags players give Questr on Steam (Choose Your Own Adventure, Dungeon Crawler, Character Action Game, Card Game, and Diplomacy): closest matches first, and among equally close ones the better-known games.

鬼谷八荒 Tale of Immortal
Shared: Management · Choose Your Own Adventure · Dating Sim

Slay the Spire
Shared: Card Game · Roguelike · Dungeon Crawler

Slay the Spire 2
Shared: Card Game · Roguelike · Indie

Darkest Dungeon®
Shared: Dungeon Crawler · Roguelike · RPG

Balatro
Shared: Card Game · Roguelike · Indie

Moonlighter
Shared: Dungeon Crawler · Roguelike · Management

Reigns
Shared: Card Game · Choose Your Own Adventure · RPG

Matchmaking Inc.
Shared: Dating Sim · Card Game · RPG

Vampire Crawlers: The Turbo Wildcard from Vampire Survivors
Shared: Dungeon Crawler · Card Game · Roguelike

9 Kings
Shared: Card Game · RPG · Roguelike

The Binding of Isaac: Rebirth
Shared: Dungeon Crawler · Roguelike · Indie

Cultist Simulator
Shared: Card Game · Roguelike · Management

Guild of Dungeoneering Ultimate Edition
Shared: Card Game · Dungeon Crawler · Roguelike

Griftlands
Shared: Card Game · RPG · Choose Your Own Adventure

Our Adventurer Guild
Shared: Party-Based RPG · Management · Dungeon Crawler

Die in the Dungeon
Shared: Card Game · Roguelike · Dungeon Crawler

Hand of Fate
Shared: Card Game · Roguelike · Choose Your Own Adventure

School Days
Shared: Choose Your Own Adventure · Dating Sim · Card Game

The Life and Suffering of Sir Brante — Chapter 1&2
Shared: Choose Your Own Adventure · Diplomacy · Management

Noita
Shared: Dungeon Crawler · Roguelike · 2D

I Was a Teenage Exocolonist
Shared: Dating Sim · Choose Your Own Adventure · RPG

He is Coming
Shared: Dungeon Crawler · Roguelike · Card Game

Book of Demons
Shared: Dungeon Crawler · RPG · Card Game

Stacklands
Shared: Card Game · Management · 2D