Games like R.A.T.: Human Error – Episode One
Games like R.A.T.: Human Error – Episode One include OMORI, Sally Face - Episode One, Sanfu, Impostor Factory, and The Witcher 3: Wild Hunt — Remastered. We matched them by the tags players give R.A.T.: Human Error – Episode One on Steam (RPG, Adventure, Interactive Fiction, Puzzle, and 2D): closest matches first, and among equally close ones the better-known games.

OMORI
Shared: RPG · Psychological Horror · Story Rich

Sally Face - Episode One
Shared: Psychological Horror · Adventure · Puzzle

Sanfu
Shared: RPG · Puzzle · Adventure

Impostor Factory
Shared: Adventure · RPG · 2D

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

Firework
Shared: Puzzle · 2D · Psychological Horror

Fran Bow
Shared: Psychological Horror · Puzzle · Adventure

GRIS
Shared: Adventure · Atmospheric · Hand-drawn

Little Nightmares II
Shared: Adventure · Puzzle · Psychological Horror

OneShot
Shared: Puzzle · Story Rich · Adventure

Finding Paradise
Shared: Adventure · RPG · 2D

Rusty Lake Paradise
Shared: Puzzle · Adventure · Psychological Horror

Gorogoa
Shared: Puzzle · Hand-drawn · Adventure

Carto
Shared: Puzzle · Adventure · Hand-drawn

To the Moon
Shared: Adventure · Interactive Fiction · RPG

Servant of the Lake
Shared: Adventure · Puzzle · Psychological Horror

Tales of the Black Forest
Shared: RPG · Adventure · Story Rich

Little Nightmares
Shared: Adventure · Puzzle · Atmospheric

Fallout 4
Shared: RPG · Adventure · Post-apocalyptic

Storyteller
Shared: Puzzle · Interactive Fiction · Adventure

Heartbound
Shared: RPG · Adventure · 2D

LISA: The Painful
Shared: RPG · Psychological Horror · Story Rich

Chants of Sennaar
Shared: Adventure · Puzzle · Colorful

DISTRAINT: Deluxe Edition
Shared: Adventure · Psychological Horror · 2D