Games like RLG:Origins
Games like RLG:Origins include Disco Elysium - The Final Cut, Baldur's Gate 3, Road to Empress I, Mirror 2: Project X, and Esoteric Ebb. We matched them by the tags players give RLG:Origins on Steam (CRPG, RPG, Exploration, Artificial Intelligence, and Immersive Sim): closest matches first, and among equally close ones the better-known games.

Disco Elysium - The Final Cut
Shared: RPG · CRPG · Story Rich

Baldur's Gate 3
Shared: RPG · CRPG · Story Rich

Road to Empress I
Shared: RPG · Immersive Sim · Visual Novel

Mirror 2: Project X
Shared: Interactive Fiction · Visual Novel · RPG

Esoteric Ebb
Shared: RPG · CRPG · Interactive Fiction

Aliya: Timelink
Shared: RPG · Interactive Fiction · Visual Novel

Suzerain
Shared: Visual Novel · Interactive Fiction · RPG

Fallout 4
Shared: Exploration · RPG · Singleplayer

The Hungry Lamb: Traveling in the Late Ming Dynasty
Shared: Visual Novel · Interactive Fiction · Multiple Endings

Rebooted Fate
Shared: RPG · Immersive Sim · Interactive Fiction

Assassin's Creed® Odyssey
Shared: RPG · Exploration · Multiple Endings

Fallout: New Vegas
Shared: RPG · Exploration · Story Rich

The Life and Suffering of Sir Brante
Shared: RPG · Interactive Fiction · Visual Novel

Roadwarden
Shared: RPG · Text-Based · Interactive Fiction

Mandate Of Heaven
Shared: RPG · Visual Novel · Immersive Sim

Breakout 13
Shared: Exploration · Interactive Fiction · Immersive Sim

Love Is All Around
Shared: Visual Novel · Interactive Fiction · Multiple Endings

Pillars of Eternity
Shared: RPG · CRPG · Story Rich

The Witcher 3: Wild Hunt — Remastered
Shared: RPG · Story Rich · Adventure

Spy Alliance
Shared: CRPG · Exploration · Immersive Sim

Hogwarts Legacy
Shared: RPG · Exploration · Adventure

Clair Obscur: Expedition 33
Shared: RPG · Exploration · Story Rich

Road to Empress Ⅱ
Shared: RPG · Interactive Fiction · Artificial Intelligence

The Coffin of Andy and Leyley
Shared: Visual Novel · Multiple Endings · Story Rich