Games like Dark Lord: Peacemaker
Games like Dark Lord: Peacemaker include Persona 5 Royal, Baldur's Gate 3, Clair Obscur: Expedition 33, Persona 4 Golden, and Metaphor: ReFantazio. We matched them by the tags players give Dark Lord: Peacemaker on Steam (Party-Based RPG, Turn-Based Combat, Character Customization, Multiple Endings, and Dark Fantasy): closest matches first, and among equally close ones the better-known games.

Persona 5 Royal
Shared: Turn-Based Combat · Story Rich · JRPG

Baldur's Gate 3
Shared: Character Customization · Turn-Based Combat · Story Rich

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

Persona 4 Golden
Shared: Turn-Based Combat · Story Rich · Party-Based RPG

Metaphor: ReFantazio
Shared: Turn-Based Combat · Story Rich · JRPG

Persona 3 Reload
Shared: Party-Based RPG · JRPG · Turn-Based Combat

Dragon Age: Origins - Ultimate Edition
Shared: Party-Based RPG · Story Rich · Character Customization

Persona 3 Portable
Shared: Turn-Based Combat · Story Rich · Party-Based RPG

Cassette Beasts
Shared: Turn-Based Combat · Party-Based RPG · JRPG

Solasta: Crown of the Magister
Shared: Character Customization · Turn-Based Combat · Story Rich

OCTOPATH TRAVELER™
Shared: Turn-Based Combat · JRPG · Story Rich

Chained Echoes
Shared: Turn-Based Combat · JRPG · Pixel Graphics

OMORI
Shared: Story Rich · Multiple Endings · Pixel Graphics

Ruined King: A League of Legends Story™
Shared: Turn-Based Combat · Story Rich · Party-Based RPG

OCTOPATH TRAVELER II
Shared: Party-Based RPG · JRPG · Turn-Based Combat

Pillars of Eternity
Shared: Party-Based RPG · Story Rich · Character Customization

Undertale
Shared: Multiple Endings · Story Rich · Pixel Graphics

FINAL FANTASY
Shared: Turn-Based Combat · Party-Based RPG · JRPG

Baldur's Gate II: Enhanced Edition
Shared: Party-Based RPG · Story Rich · Character Customization

Pathfinder: Kingmaker - Enhanced Plus Edition
Shared: Party-Based RPG · Character Customization · CRPG

Warhammer 40,000: Rogue Trader
Shared: Character Customization · Turn-Based Combat · CRPG

Fear & Hunger 2: Termina
Shared: Dark Fantasy · Party-Based RPG · JRPG

The Nameless: Slay Dragon
Shared: Turn-Based Combat · Dark Fantasy · Story Rich

FINAL FANTASY X/X-2 HD Remaster
Shared: Turn-Based Combat · Story Rich · JRPG