Games like Ludus Mortis
Games like Ludus Mortis include Darkest Dungeon®, Legend of Grimrock, Legend of Grimrock 2, Fear & Hunger 2: Termina, and Might & Magic X - Legacy. We matched them by the tags players give Ludus Mortis on Steam (RPG, Dungeon Crawler, Party-Based RPG, Grid-Based Movement, and Rome): closest matches first, and among equally close ones the better-known games.

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

Legend of Grimrock
Shared: RPG · Dungeon Crawler · Grid-Based Movement

Legend of Grimrock 2
Shared: RPG · Dungeon Crawler · Grid-Based Movement

Fear & Hunger 2: Termina
Shared: RPG · Party-Based RPG · Dungeon Crawler

Might & Magic X - Legacy
Shared: RPG · Dungeon Crawler · Grid-Based Movement

The Bard's Tale Trilogy
Shared: RPG · Dungeon Crawler · Grid-Based Movement

Darkest Dungeon® II
Shared: Dungeon Crawler · Dark Fantasy · Party-Based RPG

Low Magic Age
Shared: Party-Based RPG · Dungeon Crawler · Turn-Based Combat

Wizardry 8
Shared: RPG · Dungeon Crawler · Party-Based RPG

Lunacid
Shared: Dungeon Crawler · RPG · Dark Fantasy

StarCrawlers
Shared: RPG · Dungeon Crawler · Grid-Based Movement

Hellslave
Shared: RPG · Dungeon Crawler · Hand-drawn

Clair Obscur: Expedition 33
Shared: RPG · Turn-Based Combat · Party-Based RPG

Baldur's Gate 3
Shared: RPG · Turn-Based Combat · CRPG

Path of the Abyss
Shared: RPG · Dungeon Crawler · Grid-Based Movement

Wizardry: Proving Grounds of the Mad Overlord
Shared: Dungeon Crawler · Party-Based RPG · RPG

Dverghold
Shared: Dungeon Crawler · Party-Based RPG · Grid-Based Movement

Expeditions: Rome
Shared: RPG · Party-Based RPG · Rome

Operencia: The Stolen Sun
Shared: Dungeon Crawler · RPG · Party-Based RPG

Paper Sorcerer
Shared: Dungeon Crawler · Party-Based RPG · RPG

Potato Flowers in Full Bloom
Shared: RPG · Dungeon Crawler · Party-Based RPG

Labyrinth of Refrain: Coven of Dusk
Shared: RPG · Dungeon Crawler · Grid-Based Movement

Legends of Amberland: The Forgotten Crown
Shared: RPG · Dungeon Crawler · Party-Based RPG

Grimoire : Heralds of the Winged Exemplar (V2)
Shared: RPG · Dungeon Crawler · Party-Based RPG