Games like Sepulcrum
Games like Sepulcrum include The Last Spell, Mewgenics, Darkest Dungeon® II, Into the Breach, and Limbus Company. We matched them by the tags players give Sepulcrum on Steam (RPG, Turn-Based Tactics, Roguelite, Turn-Based Strategy, and 2D): closest matches first, and among equally close ones the better-known games.

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

Mewgenics
Shared: Turn-Based Tactics · Roguelite · RPG

Darkest Dungeon® II
Shared: Turn-Based Tactics · Roguelite · Dark Fantasy

Into the Breach
Shared: Turn-Based Strategy · Turn-Based Tactics · Strategy

Limbus Company
Shared: Turn-Based Tactics · RPG · Turn-Based Strategy

Battle Brothers
Shared: RPG · Turn-Based Tactics · Turn-Based Strategy

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

Roguebook
Shared: RPG · Roguelite · Indie

Fell Seal: Arbiter's Mark
Shared: RPG · Turn-Based Tactics · Strategy

Banner of the Maid
Shared: RPG · Turn-Based Tactics · Turn-Based Strategy

Darkest Dungeon®
Shared: RPG · Dark Fantasy · Singleplayer

The Dungeon Of Naheulbeuk: The Amulet Of Chaos
Shared: RPG · Turn-Based Tactics · Turn-Based Strategy

Vampire Survivors
Shared: Roguelite · 2D · Singleplayer

Legends of Kingdom Rush
Shared: Turn-Based Tactics · Turn-Based Strategy · Roguelite

XCOM®: Chimera Squad
Shared: Turn-Based Tactics · Turn-Based Strategy · Strategy

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

Jagged Alliance 3
Shared: Turn-Based Tactics · RPG · Turn-Based Strategy

Iratus: Lord of the Dead
Shared: RPG · Strategy · Roguelite

STAR WARS Zero Company™
Shared: Turn-Based Tactics · Turn-Based Strategy · Strategy

MENACE
Shared: RPG · Turn-Based Tactics · Turn-Based Strategy

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

Othercide
Shared: Turn-Based Tactics · Strategy · Roguelite

Heroes of Might and Magic: Olden Era
Shared: RPG · Turn-Based Strategy · Strategy

Brutal Orchestra
Shared: RPG · Roguelite · Turn-Based Tactics