Games like Casus
Games like Casus include Darkest Dungeon®, Legend of Grimrock, Legend of Grimrock 2, Crown Trick, and Clair Obscur: Expedition 33. We matched them by the tags players give Casus on Steam (Dungeon Crawler, Turn-Based Combat, Grid-Based Movement, Strategy, and Adventure): closest matches first, and among equally close ones the better-known games.

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

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

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

Crown Trick
Shared: Turn-Based Combat · Dungeon Crawler · RPG

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

XCOM 2
Shared: Turn-Based Combat · Strategy · RPG

The World of Kungfu: Dragon and Eagle
Shared: Turn-Based Combat · RPG · Adventure

Stoneshard
Shared: RPG · Strategy · Dungeon Crawler

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

StarCrawlers
Shared: Dungeon Crawler · Turn-Based Combat · RPG

Fallout 4
Shared: Adventure · RPG · Post-apocalyptic

Mutant Year Zero: Road to Eden
Shared: Turn-Based Combat · Strategy · RPG

Etrian Odyssey HD
Shared: Dungeon Crawler · Turn-Based Combat · Adventure

Dead Age
Shared: Strategy · Turn-Based Combat · RPG

Quasimorph
Shared: Turn-Based Combat · Strategy · RPG

The Dungeon Of Naheulbeuk: The Amulet Of Chaos
Shared: RPG · Adventure · Strategy

For The King II
Shared: Adventure · Strategy · RPG

Encased: A Sci-Fi Post-Apocalyptic RPG
Shared: Turn-Based Combat · Strategy · RPG

Warhammer 40,000: Rogue Trader
Shared: RPG · Turn-Based Combat · Strategy

Wartales
Shared: RPG · Turn-Based Combat · Adventure

Dragon Cliff
Shared: Strategy · RPG · Adventure

Fallout: New Vegas
Shared: RPG · Adventure · First-Person

Lunacid
Shared: Dungeon Crawler · RPG · First-Person

Metaphor: ReFantazio
Shared: Turn-Based Combat · RPG · Adventure