Games like Realization
Games like Realization include Sanfu, Firework, Unheard - Voices of Crime, Phoenix Wright: Ace Attorney Trilogy, and Tales of the Black Forest. We matched them by the tags players give Realization on Steam (RPG, Visual Novel, Psychological Horror, 2D, and Comic Book): closest matches first, and among equally close ones the better-known games.

Sanfu
Shared: RPG · 2D · Visual Novel

Firework
Shared: 2D · Psychological Horror · Visual Novel

Unheard - Voices of Crime
Shared: Thriller · Crime · RPG

Phoenix Wright: Ace Attorney Trilogy
Shared: Visual Novel · Mystery · Detective

Tales of the Black Forest
Shared: RPG · Visual Novel · Adventure

OMORI
Shared: Psychological Horror · RPG · 2D

Danganronpa V3: Killing Harmony
Shared: Visual Novel · Psychological Horror · Detective

Raging Loop
Shared: Visual Novel · Psychological Horror · Adventure

Danganronpa: Trigger Happy Havoc
Shared: Visual Novel · Psychological Horror · Mystery

Danganronpa 2: Goodbye Despair
Shared: Visual Novel · Psychological Horror · Mystery

Urban Myth Dissolution Center
Shared: Visual Novel · Psychological Horror · 2D

Cyber Manhunt
Shared: RPG · Puzzle · Mystery

The Deed
Shared: RPG · Visual Novel · Crime

NEEDY STREAMER OVERLOAD
Shared: Psychological Horror · Visual Novel · 2D

Zero Escape: The Nonary Games
Shared: Visual Novel · Psychological Horror · Mystery

Murders on the Yangtze River
Shared: Adventure · Puzzle · Detective

Zero Escape: Zero Time Dilemma
Shared: Visual Novel · Psychological Horror · Puzzle

WILL: A Wonderful World / WILL:美好世界
Shared: RPG · Adventure · Puzzle

Return to Shironagasu Island
Shared: Visual Novel · Psychological Horror · Adventure

Billionaire Lovers
Shared: RPG · Visual Novel · Psychological Horror

Magical Girl Witch Trials
Shared: Visual Novel · Mystery · Female Protagonist

Folie Fatale
Shared: Visual Novel · Psychological Horror · Thriller

Ib
Shared: 2D · Psychological Horror · RPG

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