Games like Darkest Dungeon® II
Games like Darkest Dungeon® II include Darkest Dungeon®, The Last Spell, Crown Trick, Iratus: Lord of the Dead, and Legend of Keepers: Prologue. We matched them by the tags players give Darkest Dungeon® II on Steam (Turn-Based Tactics, Roguelite, Dark Fantasy, Dungeon Crawler, and Lovecraftian): closest matches first, and among equally close ones the better-known games.

Darkest Dungeon®
Shared: Dark Fantasy · Dungeon Crawler · Lovecraftian

The Last Spell
Shared: Turn-Based Tactics · Singleplayer · Turn-Based

Crown Trick
Shared: Roguelite · Dungeon Crawler · Roguelike

Iratus: Lord of the Dead
Shared: Dark Fantasy · Roguelite · Roguelike

Legend of Keepers: Prologue
Shared: Dungeon Crawler · Roguelite · Roguelike

Hades
Shared: Roguelite · Roguelike · Singleplayer

Othercide
Shared: Turn-Based Tactics · Dark Fantasy · Roguelite

Stoneshard
Shared: Roguelike · Turn-Based · Dungeon Crawler

Slay the Spire
Shared: Roguelike · Roguelite · Singleplayer

Into the Breach
Shared: Turn-Based Tactics · Roguelite · Roguelike

King Arthur: Knight's Tale
Shared: Turn-Based Tactics · Dark Fantasy · Roguelite

Trials of Fire
Shared: Turn-Based Tactics · Roguelite · Dungeon Crawler

Mewgenics
Shared: Turn-Based Tactics · Roguelite · Turn-Based Combat

Hades II
Shared: Roguelite · Roguelike · Dungeon Crawler

Peglin
Shared: Roguelite · Roguelike · Turn-Based

Aethermancer
Shared: Roguelike · Dungeon Crawler · Dark Fantasy

Warhammer 40,000: Mechanicus
Shared: Turn-Based Tactics · Singleplayer · Turn-Based Combat

Black Book
Shared: Turn-Based Tactics · Dungeon Crawler · Roguelite

Mordheim: City of the Damned
Shared: Turn-Based Tactics · Dark Fantasy · Turn-Based

XCOM 2
Shared: Turn-Based Tactics · Singleplayer · Turn-Based Combat

Roguebook
Shared: Roguelite · Singleplayer · Turn-Based Tactics

Balatro
Shared: Roguelike · Singleplayer · Roguelite

Tainted Grail: Conquest
Shared: Dark Fantasy · Roguelike · Singleplayer

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