Games like Lost Carcossa
Games like Lost Carcossa include Darkest Dungeon®, Darkest Dungeon® II, Clair Obscur: Expedition 33, Crown Trick, and The Last Spell. We matched them by the tags players give Lost Carcossa on Steam (RPG, Roguelite, Perma Death, Party-Based RPG, and 3D): closest matches first, and among equally close ones the better-known games.

Darkest Dungeon®
Shared: RPG · Turn-Based Combat · Dark Fantasy

Darkest Dungeon® II
Shared: Roguelite · Perma Death · Dark Fantasy

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

Crown Trick
Shared: RPG · Roguelite · Perma Death

The Last Spell
Shared: RPG · Strategy · Turn-Based Combat

Chrono Ark
Shared: RPG · Roguelite · Party-Based RPG

Stoneshard
Shared: RPG · Procedural Generation · Strategy

For The King II
Shared: RPG · Party-Based RPG · Strategy

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

Iratus: Lord of the Dead
Shared: RPG · Roguelite · Turn-Based Combat

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

觅长生
Shared: RPG · Turn-Based Combat · Strategy

Ash of Gods: Redemption
Shared: RPG · Turn-Based Combat · Dark Fantasy

9 Kings
Shared: RPG · Roguelite · Strategy

Wartales
Shared: RPG · Party-Based RPG · Turn-Based Combat

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

RAID: Shadow Legends
Shared: RPG · Party-Based RPG · Turn-Based Combat

Aethermancer
Shared: Party-Based RPG · RPG · Strategy

King Arthur: Knight's Tale
Shared: RPG · Dark Fantasy · Turn-Based Combat

For The King
Shared: RPG · Strategy · Roguelite

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

Peglin
Shared: Roguelite · Perma Death · RPG

Mewgenics
Shared: Roguelite · RPG · Turn-Based Combat

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